From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 2504/CH10/EX10.1/10_1.sce | 22 ++++++++++++++++++++++
 2504/CH10/EX10.2/10_2.sce | 21 +++++++++++++++++++++
 2504/CH10/EX10.3/10_3.sce | 12 ++++++++++++
 2504/CH10/EX10.4/10_4.sce | 17 +++++++++++++++++
 2504/CH10/EX10.5/10_5.sce | 23 +++++++++++++++++++++++
 2504/CH10/EX10.6/10_6.sce | 22 ++++++++++++++++++++++
 2504/CH11/EX11.1/11_1.sce | 31 +++++++++++++++++++++++++++++++
 2504/CH11/EX11.2/11_2.sce | 18 ++++++++++++++++++
 2504/CH11/EX11.3/11_3.sce | 22 ++++++++++++++++++++++
 2504/CH11/EX11.4/11_4.sce | 24 ++++++++++++++++++++++++
 2504/CH11/EX11.5/11_5.sce | 24 ++++++++++++++++++++++++
 2504/CH11/EX11.6/11_6.sce | 28 ++++++++++++++++++++++++++++
 2504/CH11/EX11.7/11_7.sce | 34 ++++++++++++++++++++++++++++++++++
 2504/CH12/EX12.1/12_1.sce | 25 +++++++++++++++++++++++++
 2504/CH12/EX12.2/12_2.sce | 15 +++++++++++++++
 2504/CH12/EX12.3/12_3.sce | 23 +++++++++++++++++++++++
 2504/CH12/EX12.4/12_4.sce | 17 +++++++++++++++++
 2504/CH12/EX12.5/12_5.sce | 21 +++++++++++++++++++++
 2504/CH13/EX13.1/13_1.sce | 21 +++++++++++++++++++++
 2504/CH13/EX13.2/13_2.sce | 27 +++++++++++++++++++++++++++
 2504/CH13/EX13.3/13_3.sce | 19 +++++++++++++++++++
 2504/CH14/EX14.1/14_1.sce | 27 +++++++++++++++++++++++++++
 2504/CH14/EX14.2/14_2.sce | 17 +++++++++++++++++
 2504/CH2/EX2.1/2_1.sce    | 14 ++++++++++++++
 2504/CH2/EX2.3/2_3.sce    | 28 ++++++++++++++++++++++++++++
 2504/CH2/EX2.4/2_4.sce    | 10 ++++++++++
 2504/CH2/EX2.5/2_5.sce    | 17 +++++++++++++++++
 2504/CH2/EX2.6/2_6.sce    | 17 +++++++++++++++++
 2504/CH2/EX2.7/2_7.sce    | 19 +++++++++++++++++++
 2504/CH3/EX3.1/3_1.sce    | 18 ++++++++++++++++++
 2504/CH3/EX3.2/3_2.sce    |  9 +++++++++
 2504/CH3/EX3.5/3_5.sce    | 20 ++++++++++++++++++++
 2504/CH5/EX4.1/5_1.sce    | 22 ++++++++++++++++++++++
 2504/CH5/EX5.2/5_2.sce    | 13 +++++++++++++
 2504/CH5/EX5.3/5_3.sce    | 11 +++++++++++
 2504/CH5/EX5.5/5_5.sce    | 21 +++++++++++++++++++++
 2504/CH6/EX6.1/6_1.sce    | 12 ++++++++++++
 2504/CH6/EX6.10/6_10.sce  | 18 ++++++++++++++++++
 2504/CH6/EX6.2/6_2.sce    | 10 ++++++++++
 2504/CH6/EX6.3/6_3.sce    | 13 +++++++++++++
 2504/CH6/EX6.4/6_4.sce    | 25 +++++++++++++++++++++++++
 2504/CH6/EX6.5/6_5.sce    | 28 ++++++++++++++++++++++++++++
 2504/CH6/EX6.7/6_7.sce    | 14 ++++++++++++++
 2504/CH6/EX6.9/6_9.sce    | 16 ++++++++++++++++
 2504/CH7/EX7.1/7_1.sce    |  9 +++++++++
 2504/CH7/EX7.10/7_10.sce  | 25 +++++++++++++++++++++++++
 2504/CH7/EX7.11/7_11.sce  | 29 +++++++++++++++++++++++++++++
 2504/CH7/EX7.2/7_2.sce    | 22 ++++++++++++++++++++++
 2504/CH7/EX7.3/7_3.sce    | 21 +++++++++++++++++++++
 2504/CH7/EX7.4/7_4.sce    |  9 +++++++++
 2504/CH7/EX7.5/7_5.sce    |  9 +++++++++
 2504/CH7/EX7.6/7_6.sce    | 20 ++++++++++++++++++++
 2504/CH7/EX7.7/7_7.sce    | 26 ++++++++++++++++++++++++++
 2504/CH7/EX7.9/7_9.sce    | 21 +++++++++++++++++++++
 2504/CH8/EX8.2/8_2.sce    | 12 ++++++++++++
 2504/CH8/EX8.3/8_3.sce    | 17 +++++++++++++++++
 2504/CH8/EX8.4/8_4.sce    | 11 +++++++++++
 2504/CH9/EX9.1/9_1.sce    | 22 ++++++++++++++++++++++
 2504/CH9/EX9.3/9_3.sce    | 20 ++++++++++++++++++++
 59 files changed, 1138 insertions(+)
 create mode 100755 2504/CH10/EX10.1/10_1.sce
 create mode 100755 2504/CH10/EX10.2/10_2.sce
 create mode 100755 2504/CH10/EX10.3/10_3.sce
 create mode 100755 2504/CH10/EX10.4/10_4.sce
 create mode 100755 2504/CH10/EX10.5/10_5.sce
 create mode 100755 2504/CH10/EX10.6/10_6.sce
 create mode 100755 2504/CH11/EX11.1/11_1.sce
 create mode 100755 2504/CH11/EX11.2/11_2.sce
 create mode 100755 2504/CH11/EX11.3/11_3.sce
 create mode 100755 2504/CH11/EX11.4/11_4.sce
 create mode 100755 2504/CH11/EX11.5/11_5.sce
 create mode 100755 2504/CH11/EX11.6/11_6.sce
 create mode 100755 2504/CH11/EX11.7/11_7.sce
 create mode 100755 2504/CH12/EX12.1/12_1.sce
 create mode 100755 2504/CH12/EX12.2/12_2.sce
 create mode 100755 2504/CH12/EX12.3/12_3.sce
 create mode 100755 2504/CH12/EX12.4/12_4.sce
 create mode 100755 2504/CH12/EX12.5/12_5.sce
 create mode 100755 2504/CH13/EX13.1/13_1.sce
 create mode 100755 2504/CH13/EX13.2/13_2.sce
 create mode 100755 2504/CH13/EX13.3/13_3.sce
 create mode 100755 2504/CH14/EX14.1/14_1.sce
 create mode 100755 2504/CH14/EX14.2/14_2.sce
 create mode 100755 2504/CH2/EX2.1/2_1.sce
 create mode 100755 2504/CH2/EX2.3/2_3.sce
 create mode 100755 2504/CH2/EX2.4/2_4.sce
 create mode 100755 2504/CH2/EX2.5/2_5.sce
 create mode 100755 2504/CH2/EX2.6/2_6.sce
 create mode 100755 2504/CH2/EX2.7/2_7.sce
 create mode 100755 2504/CH3/EX3.1/3_1.sce
 create mode 100755 2504/CH3/EX3.2/3_2.sce
 create mode 100755 2504/CH3/EX3.5/3_5.sce
 create mode 100755 2504/CH5/EX4.1/5_1.sce
 create mode 100755 2504/CH5/EX5.2/5_2.sce
 create mode 100755 2504/CH5/EX5.3/5_3.sce
 create mode 100755 2504/CH5/EX5.5/5_5.sce
 create mode 100755 2504/CH6/EX6.1/6_1.sce
 create mode 100755 2504/CH6/EX6.10/6_10.sce
 create mode 100755 2504/CH6/EX6.2/6_2.sce
 create mode 100755 2504/CH6/EX6.3/6_3.sce
 create mode 100755 2504/CH6/EX6.4/6_4.sce
 create mode 100755 2504/CH6/EX6.5/6_5.sce
 create mode 100755 2504/CH6/EX6.7/6_7.sce
 create mode 100755 2504/CH6/EX6.9/6_9.sce
 create mode 100755 2504/CH7/EX7.1/7_1.sce
 create mode 100755 2504/CH7/EX7.10/7_10.sce
 create mode 100755 2504/CH7/EX7.11/7_11.sce
 create mode 100755 2504/CH7/EX7.2/7_2.sce
 create mode 100755 2504/CH7/EX7.3/7_3.sce
 create mode 100755 2504/CH7/EX7.4/7_4.sce
 create mode 100755 2504/CH7/EX7.5/7_5.sce
 create mode 100755 2504/CH7/EX7.6/7_6.sce
 create mode 100755 2504/CH7/EX7.7/7_7.sce
 create mode 100755 2504/CH7/EX7.9/7_9.sce
 create mode 100755 2504/CH8/EX8.2/8_2.sce
 create mode 100755 2504/CH8/EX8.3/8_3.sce
 create mode 100755 2504/CH8/EX8.4/8_4.sce
 create mode 100755 2504/CH9/EX9.1/9_1.sce
 create mode 100755 2504/CH9/EX9.3/9_3.sce

(limited to '2504')

diff --git a/2504/CH10/EX10.1/10_1.sce b/2504/CH10/EX10.1/10_1.sce
new file mode 100755
index 000000000..525a99cba
--- /dev/null
+++ b/2504/CH10/EX10.1/10_1.sce
@@ -0,0 +1,22 @@
+clc
+//initialisation of variables
+clear
+g= 32.2 //ft/sec^2
+u= 3.6*10^-5 //lbf sec/ft^2
+d= 64 //lbm/ft^2
+l= 20 //ft
+a= 0.5
+//CALCULATIONS
+sw= u*g/(a*d)
+sw1= u^2*g*l/(2*a*d)
+Re=[1 2 3 4 5 6 7 8 9 10]*10^5
+Vinf=Re*u*g/(d*a)
+Cd=[1.2 1.15 0.94 0.68 0.305 0.31 0.32 0.33 0.34 0.35]
+cdre=Cd.*Re^2
+D=sw1*cdre
+//RESULTS
+printf ('velocity = %.2e ft/sec',sw)
+printf ('\n Force = %.2e lbf',sw1)
+disp(Vinf)
+disp(D)
+
diff --git a/2504/CH10/EX10.2/10_2.sce b/2504/CH10/EX10.2/10_2.sce
new file mode 100755
index 000000000..ff2a2dcaa
--- /dev/null
+++ b/2504/CH10/EX10.2/10_2.sce
@@ -0,0 +1,21 @@
+clc
+//initialisation of variables
+clear
+g= 32.2 //ft/sec^2
+u= 3.6*10^-5 //lbf sec/ft^2
+d= 64 //lbm/ft^2
+l= 20 //ft
+a= 0.5
+//CALCULATIONS
+sw= u*g/(a*d)
+sw1= u^2*g*l/(2*a*d)
+Re=[1 2 3 4 5 6 7 8 9 10]*10^5
+Vinf=Re*u*g/(d*a)
+Cd=[1.2 1.15 0.94 0.68 0.305 0.31 0.32 0.33 0.34 0.35]
+cdre=Cd.*Re^2
+D=sw1*cdre
+//RESULTS
+plot(Vinf,D)
+xtitle("","Vinf, ft/sec", "D, lbf") 
+
+//data for curves b,c,d is not given
diff --git a/2504/CH10/EX10.3/10_3.sce b/2504/CH10/EX10.3/10_3.sce
new file mode 100755
index 000000000..302ea2cbe
--- /dev/null
+++ b/2504/CH10/EX10.3/10_3.sce
@@ -0,0 +1,12 @@
+clc
+//initialisation of variables
+clear
+v1= 10 //ft/sec
+v2= 9 //ft/sec
+a= 1.02
+r= 5.95
+//CALCULATIONS
+ca= (v1/v2)^2
+Cd= r*(ca-1+2-2*ca)+2*a*ca
+//RESULTS
+printf ('Drage coeffcieicnt = %.2f',Cd)
diff --git a/2504/CH10/EX10.4/10_4.sce b/2504/CH10/EX10.4/10_4.sce
new file mode 100755
index 000000000..213c7a329
--- /dev/null
+++ b/2504/CH10/EX10.4/10_4.sce
@@ -0,0 +1,17 @@
+clc
+//initialisation of variables
+clear
+A= 320 //ft/^2
+w= 18000 //lbf
+v= 230 //ft/sec
+ad= 0.0765 //lbm/ft^3
+p= 5 //per cent
+c= 0.055
+n= 1.75
+g= 32.2 //ft/sec^2
+//CALCULATIONS
+CL= 2*w*(1-(p/100))*g/(ad*v^2*A)
+D= w*(1-(p/100))*c*n/CL
+//RESULTS
+printf ('lift coeefieicnt = %.2f',CL)
+printf ('\n Drage force = %.f',D)
diff --git a/2504/CH10/EX10.5/10_5.sce b/2504/CH10/EX10.5/10_5.sce
new file mode 100755
index 000000000..f486ea338
--- /dev/null
+++ b/2504/CH10/EX10.5/10_5.sce
@@ -0,0 +1,23 @@
+clc
+//initialisation of variables
+clear
+bi= 70 //degrees
+i= 8 //degrees
+bo= 130 //degrees
+s= 5 //degrees
+vi= 1200 //ft/sec
+g= 32.2 //ft/sec^2
+a= 0.48
+s1= 1.4 //in
+b= 5 //in
+Cx= 0.06
+//CALCULATIONS
+O= bo-s-bi+i
+Vo= vi*sind(bi-i)/sind(bo-s)
+Fy= -a*vi*sind(bi-i)*(s1/12)*(b/12)*(Vo*cosd(bo-s)-vi*cosd(bi-i))/g
+dp= a*(Vo^2*(1+Cx)-vi^2)/(2*g)
+//RESULTS
+printf ('Fluid deflection angle = %.f degrees',O)
+printf ('\n Vo = %.f ft/sec',Vo)
+printf ('\n Force on each blade = %.f lbf',Fy)
+printf ('\n Pressure difference = %.f lbf/ft^2',dp)
diff --git a/2504/CH10/EX10.6/10_6.sce b/2504/CH10/EX10.6/10_6.sce
new file mode 100755
index 000000000..412cba177
--- /dev/null
+++ b/2504/CH10/EX10.6/10_6.sce
@@ -0,0 +1,22 @@
+clc
+//initialisation of variables
+clear
+ari= 62 //degrees
+aro= 125 //degrees
+vri= 1200 //ft/sec
+vro= 1294 //ft/sec
+vrr= 550 //ft/sec
+//CALCULATIONS
+v1= vri*sind(ari)
+v2= vrr+vri*cosd(ari)
+vi= sqrt(v1^2+v2^2)
+ai= atand(v1/v2)
+vo= vro*sind(aro)
+vo1= vro*cosd(aro)+vrr
+vo2= sqrt(vo^2+vo1^2)
+ao= atand(vo/vo1)+180
+//RESULTS
+printf ('absolute velocity = %.f ft/sec',vi)
+printf ('\n direction = %.1f degrees',ai)
+printf ('\n absolute velocity = %.f ft/sec',vo2)
+printf ('\n direction = %.1f degrees',ao)
diff --git a/2504/CH11/EX11.1/11_1.sce b/2504/CH11/EX11.1/11_1.sce
new file mode 100755
index 000000000..81f26c210
--- /dev/null
+++ b/2504/CH11/EX11.1/11_1.sce
@@ -0,0 +1,31 @@
+clc
+//initialisation of variables
+clear
+rt= 1.3 //ft
+rr= 0.6 //ft
+Q= 75 //ft^3
+rm= 0.95
+w1= 40 //rev/sec
+bim= 153 //degrees
+bom= 147 //degrees
+w= 62.4 //lb/ft^3
+g= 32.2 //ft/sec^2
+//CALCULATIONS
+A= %pi*(rt^2-rr^2)
+Va= Q/A
+Vbm= rm*w1
+a= acotd(-Vbm/Va)
+im= a-bim
+vwm= Vbm+Va*cotd(bom)
+dvwm= rm*vwm
+C= w*Q*dvwm/g
+Cw= C*w1
+dp= Cw/Q
+//RESULTS
+printf ('Incidence = %.1f degrees',im) 
+printf ('\n Oulet velocity = %.2f ft/sec',vwm)
+printf ('\n Change of whirl at the mean radius = %.2f ft^2/sec',dvwm)
+
+printf ('\n Torque = %.f lbf/ft',C)
+printf ('\n Rate of working = %.f ft lbf/sec',Cw)
+printf ('\n Workdone by the rotor = %.f lbf/ft^2',dp)
diff --git a/2504/CH11/EX11.2/11_2.sce b/2504/CH11/EX11.2/11_2.sce
new file mode 100755
index 000000000..655fbd9bb
--- /dev/null
+++ b/2504/CH11/EX11.2/11_2.sce
@@ -0,0 +1,18 @@
+clc
+//initialisation of variables
+clear
+vbm= 38 //ft/sec
+va= 17.94 //ft/sec
+a= 147.5 //degrees
+vwm= 10.37 //ft/sec
+C= 1430 //lbf/ft
+P= 763 //lbf/ft^2
+//CALCULATIONS
+vwm1= vbm+va*cotd(a)
+p= (vwm-vwm1)/vwm
+C1= C*(1-p)
+P1= P*(1-p)
+//RESULTS
+printf ('Oulet Velocity = %.2f ft/sec',vwm1) 
+printf ('\n Torque = %.f lbf/ft',C1)
+printf ('\n Workdone by the rotor = %.f lbf/ft^2',P1)
diff --git a/2504/CH11/EX11.3/11_3.sce b/2504/CH11/EX11.3/11_3.sce
new file mode 100755
index 000000000..55e867aac
--- /dev/null
+++ b/2504/CH11/EX11.3/11_3.sce
@@ -0,0 +1,22 @@
+clc
+//initialisation of variables
+clear
+a= 154 //degrees
+vbm= 38 //ft/sec
+bom= 147 //degrees
+vwm= -7.78 //ft/sec
+w= 62.4 //lbf/ft^3
+g= 32.2 //ft/sec^2
+vb= 38 //ft/sec
+A= 4.18 //ft^2
+e= 0.95
+//CALCULATIONS
+vat= (vwm-vb)*tand(bom)
+Q= vat*A
+a1= acotd(-vbm/vat)
+imt= a1-a
+C= w*Q*vwm*e/g
+//RESULTS
+printf ('Flow rate = %.1f ft^3',Q)
+printf ('\n Incidence angle= %.f degrees',imt)
+printf ('\n Torque= %.f lbf ft',C)
diff --git a/2504/CH11/EX11.4/11_4.sce b/2504/CH11/EX11.4/11_4.sce
new file mode 100755
index 000000000..4644971c1
--- /dev/null
+++ b/2504/CH11/EX11.4/11_4.sce
@@ -0,0 +1,24 @@
+clc
+//initialisation of variables
+clear
+rt= 0.5 //ft
+rr= 0.16 //ft
+dv1= 88.3 //ft/sec
+b= 150 //degrees
+r= [0.16 0.3 0.5]
+vw= [2.5 5 7.5]
+vb= [46.6 88.3 132.5]
+vrb= [44.16 88.3 132.5]
+v1= [-1.154 -0.385]
+//CALCULATIONS
+A= %pi*(rt^2-rr^2)
+Va= -dv1*tand(b)
+Q= Va*A
+a= atand(v1)+180
+i= b-a
+//RESULTS
+printf ('Velocity = %.2f ft/sec',Va)
+printf ('\n Flow rate = %.1f ft^3',Q)
+disp(v1)
+disp(a)
+disp(i)
diff --git a/2504/CH11/EX11.5/11_5.sce b/2504/CH11/EX11.5/11_5.sce
new file mode 100755
index 000000000..635c7fc77
--- /dev/null
+++ b/2504/CH11/EX11.5/11_5.sce
@@ -0,0 +1,24 @@
+clc
+//initialisation of variables
+clear
+rt= 0.5 //ft
+rr= 0.16 //ft
+dv1= 88.3 //ft/sec
+b= 150 //degrees
+a= 5 //degrees
+v1= [-0.933 -0.311]
+i= [1.0 5.0 6.7]
+//CALCULATIONS
+b1= b+a
+A= %pi*(rt^2-rr^2)
+Va= -dv1*tand(b1)
+Q= Va*A
+a1= atand(v1)+180
+
+//RESULTS
+printf ('Velocity = %.2f ft/sec',Va)
+printf ('\n Flow rate = %.1f ft^3/sec',Q)
+
+disp(v1)
+disp(a1)
+disp(i)
diff --git a/2504/CH11/EX11.6/11_6.sce b/2504/CH11/EX11.6/11_6.sce
new file mode 100755
index 000000000..00f67f902
--- /dev/null
+++ b/2504/CH11/EX11.6/11_6.sce
@@ -0,0 +1,28 @@
+clc
+//initialisation of variables
+clear
+r= 1 //in
+b= 0.75 //in
+w= 180 //rev/sec
+B= 120 //degrees
+Bo= 150 //degrees
+ro= 3 //ft
+bo= 0.5 //ft
+Vbo= 180 //ft/sec
+w1= 62.4 //lbf/ft^3
+g= 32.2 //ft/sec^2
+//CALCULATIONS
+Q= -2*%pi*(r/12)^2*(b/12)*w*tand(B)
+Vfo= Q/(2*%pi*(ro/12)*(bo/12))
+Vwo= Vbo*(ro/12)+Vfo*cotd(Bo)
+C= w1*Q*Vwo*(ro/12)/g
+dp= w1*Vwo*w*(ro/12)/g
+ari= atand(-Q*0.8/(2*%pi*(r/12)^2*(b/12)*w))+180
+i1= ari-B
+//RESULTS
+printf ('Flow rate = %.2f ft^3/sec',Q)
+printf ('\n radial velocity= %.2f ft/sec',Vfo)
+printf ('\n outlet whirl velocity= %.2f ft/sec',Vwo)
+printf ('\n Torque= %.2f lbf ft',C)
+printf ('\n Stagnant pressure = %.f lbf/ft^2',dp)
+printf ('\n Incidence angle = %.1f degrees',i1)
diff --git a/2504/CH11/EX11.7/11_7.sce b/2504/CH11/EX11.7/11_7.sce
new file mode 100755
index 000000000..ede38dac4
--- /dev/null
+++ b/2504/CH11/EX11.7/11_7.sce
@@ -0,0 +1,34 @@
+clc
+//initialisation of variables
+clear
+r= 1.4
+Mai= 0.5 //ft/sec
+T= 582 //R
+psi= 3040 //lbf/in^2
+R= 53.3 //ft lbf/lbm
+g= 32.2 //ft/sec^2
+Vwi= 300 //ft/sec
+m= 35 //lb/sec
+rm= 0.7 //ft
+rp= 4.25
+w= 1200 //rev/sec
+cp= 0.24
+J= 778 //lb
+//CALCULATIONS
+tr= 1+0.5*(r-1)*Mai^2
+Ti= T/tr
+pr= tr^(r/(r-1))
+pi= psi/pr
+ai= pi/(R*Ti)
+Vi= Mai*(r*R*g*Ti)^0.5
+Vai= sqrt(Vi^2-Vwi^2)
+h= m/(2*%pi*ai*rm*Vai)
+pr1= rp^(1/12)
+Vwo= Vwi+(pr1^((r-1)/r)-1)*(cp*J*g*T/(rm*w))
+BO= acotd((Vwo-w*rm)/Vai)
+//RESULTS
+printf ('Absolute air velocity = %.f ft/sec',Vi)
+printf ('\n air velocity = %.f ft/sec',Vai)
+printf ('\n Blade height = %.3f ft',h)
+printf ('\n velocity = %.f ft/sec',Vwo)
+printf ('\n outlet balde angle = %.1f degrees',BO)
diff --git a/2504/CH12/EX12.1/12_1.sce b/2504/CH12/EX12.1/12_1.sce
new file mode 100755
index 000000000..65d2a0693
--- /dev/null
+++ b/2504/CH12/EX12.1/12_1.sce
@@ -0,0 +1,25 @@
+clc
+//initialisation of variables
+clear
+d= 0.0764 //lbm/ft^3
+u= 3.74*10^-7 //lbf sec/ft^2
+D= 15 //in
+g= 32.2 //ft/sec^2
+p= 14.7 //lb/in^2
+r1= [0.02 0.04 0.06 0.08 0.1 1.15]
+r2= [0.0338 0.0267 0.0199 0.0159 0.0132 0.0100]
+r3= [0.46 0.92 1.38 1.84 2.3 2.64]
+r4= [2.97 2.35 1.75 1.4 1.16 0.88]
+r5= [0.0206 0.0163 0.0121 0.0097 0.0081 0.0061]
+//CALCULATIONS
+re= (d/u)*(p*100*2*%pi/60)*(D/12)^2/g
+//RESULTS
+printf ('Reynolds Number = %.2e ',re) 
+xtitle("","m lbm/sec", "dPs lbf/ft^2") 
+
+disp(r1)
+disp(r2)
+disp(r3)
+disp(r4)
+disp(r5)
+plot(r3,r5)
diff --git a/2504/CH12/EX12.2/12_2.sce b/2504/CH12/EX12.2/12_2.sce
new file mode 100755
index 000000000..ba474275c
--- /dev/null
+++ b/2504/CH12/EX12.2/12_2.sce
@@ -0,0 +1,15 @@
+clc
+//initialisation of variables
+clear
+psif= 10.2 //lbf/in^2
+usit= 3.8*10^-7 //lbf sec/ft^2
+usif= 3.52*10^-7 //lbf sec/ft^2
+Tsit= 530 //R
+Tsif= 480 //R
+wf= 15000 //rev/min
+//CALCULATIONS
+Psit= psif*usit*sqrt(Tsit/Tsif)/usif
+wt= wf*sqrt(Tsit/Tsif)
+//RESULTS
+printf ('Pressure in the test cell = %.1f lbf/in^2',Psit) 
+printf ('\n Compressor speed = %.f rev.min',wt) 
diff --git a/2504/CH12/EX12.3/12_3.sce b/2504/CH12/EX12.3/12_3.sce
new file mode 100755
index 000000000..1cd9d91c9
--- /dev/null
+++ b/2504/CH12/EX12.3/12_3.sce
@@ -0,0 +1,23 @@
+clc
+//initialisation of variables
+clear
+w= 62.3 //lbf/ft^3
+d= 0.375 //in
+ro= 0.75 //ft
+l= 1.25 //ft
+b= 120 //degrees
+do= 0.25 //in
+p= 750 //lbf/in^2
+g= 32.1 //ft/sec^2
+f= 0.03
+f1= 0.9
+f2= 0.3
+w1= 60 //rad/sec
+//CALCULATIONS
+Q= sqrt(((p/w)+((60*ro)^2/(2*g))+do)*%pi^2*g*(d/12)^4/((d/do)^4-1+(l*f/(d/12))+f1+f2))*0.353
+Vwo= w1*ro+(4*Q/(%pi*(do/12)^2))*cosd(b)
+C= w*Q*Vwo*ro/g
+//RESULTS
+printf ('Flow Rate = %.4f ft^3/sec',Q) 
+printf ('\n Vwo = %.2f ft/sec',Vwo) 
+printf ('\n Driving Torque = %.3f lbf ft',C) 
diff --git a/2504/CH12/EX12.4/12_4.sce b/2504/CH12/EX12.4/12_4.sce
new file mode 100755
index 000000000..a0d86c729
--- /dev/null
+++ b/2504/CH12/EX12.4/12_4.sce
@@ -0,0 +1,17 @@
+clc
+//initialisation of variables
+clear
+W= 38 //rev/sec
+w= 62.4 //lbf/ft^3
+m= 2000 //lbm/sec
+g= 32.2 //ft/sec^2
+ps= 5000 //lbf/ft^2
+S3= 4.6
+e= 0.91
+//CALCULATIONS
+S1= W*(w*m^2/(g*ps)^3)^0.25
+D= S3*(m^2/(w*g*ps))^0.25
+//RESULTS
+printf ('S1 = %.3f',S1)  
+printf ('\n Diameter = %.2f ft',D)  
+printf ('\n efficiency = %.2f ',e)
diff --git a/2504/CH12/EX12.5/12_5.sce b/2504/CH12/EX12.5/12_5.sce
new file mode 100755
index 000000000..1eed24d19
--- /dev/null
+++ b/2504/CH12/EX12.5/12_5.sce
@@ -0,0 +1,21 @@
+clc
+//initialisation of variables
+clear
+d= 6 //in
+f= 0.25
+l= 1200 //ft
+p= 55 //lbm/ft^3
+w= 740 //rev/min
+g= 32.2 //ft/sec^2
+n= 0.87
+d1= 1.78 //ft
+//CALCULATIONS
+D= (0.13*%pi^2*(d/12)^5/(8*f*l*0.012^2))^0.25*d1
+m= 0.012*p*(w*2*%pi/60)*D^3
+dps= 0.13*p*(w*2*%pi*D/60)^2/g
+P= m*10*dps/(p*n)
+//RESULTS
+printf ('Diameter = %.2f ft',D) 
+printf ('\n Mass flow rate = %.1f lbm/sec',m) 
+printf ('\n pressure rise = %.1f lbf/ft^2',dps)
+printf ('\n shaft power = %.2e ft lbf/sec',P)
diff --git a/2504/CH13/EX13.1/13_1.sce b/2504/CH13/EX13.1/13_1.sce
new file mode 100755
index 000000000..d738a4125
--- /dev/null
+++ b/2504/CH13/EX13.1/13_1.sce
@@ -0,0 +1,21 @@
+clc
+//initialisation of variables
+clear
+nop= 0.88
+nom= 0.88
+Pm= 75 //hp
+p= 3000 //lb/in^2
+d= 54.5 //lbm/ft^3
+u= 1.05*10^-4
+d1= 0.5 //in
+g= 32.2 //ft/sec^2
+//CALCULATIONS
+nt= (7/11)*nop*nom
+pp= Pm/nt
+Q= nop*pp*550/(p*144)
+Re= 4*d*Q/(%pi*u*(d1/12)*g)
+//RESULTS
+printf ('n trans = %.3f ',nt)
+printf ('\n Input power = %.f hp',pp)
+printf ('\n Flow rate = %.3f ft^3/sec',Q)
+printf ('\n Reynolds Number = %.1e ',Re)
diff --git a/2504/CH13/EX13.2/13_2.sce b/2504/CH13/EX13.2/13_2.sce
new file mode 100755
index 000000000..34b0ef017
--- /dev/null
+++ b/2504/CH13/EX13.2/13_2.sce
@@ -0,0 +1,27 @@
+clc
+//initialisation of variables
+clear
+lc= 0.25
+a= 90 //degrees
+p= 3000 //lb/in^2
+g= 32.2 //ft/sec^2
+d1= 0.5 //in
+Q= 0.171 //ft^3/sec
+d= 54.5 //lbm/ft^3
+n1= 2 
+n2= 6
+lc1= 0.9
+nop= 0.88
+nom= 0.88
+//CALCULATIONS
+P1= 4*p*144/11
+P2= 8*d*Q^2*(n1*lc+n2*lc1)/(%pi^2*(d1/12)^4*g)
+pt= P1+P2
+dpm= (p*144-pt)
+ntrans= nop*nom*dpm/(p*144)
+//RESULTS
+printf ('Frictional pressure drop = %.2e lbf/ft^2',P1) 
+printf ('\n Extra Frictional pressure drop = %.2e lbf/ft^2',P2) 
+printf ('\n Total pressure drop = %.2e lbf/ft^2',pt)
+printf ('\n Motor pressure drop = %.2e lbf/ft^2',dpm)
+printf ('\n Overall transmission coefficiency = %.3f',ntrans)
diff --git a/2504/CH13/EX13.3/13_3.sce b/2504/CH13/EX13.3/13_3.sce
new file mode 100755
index 000000000..be3ea7184
--- /dev/null
+++ b/2504/CH13/EX13.3/13_3.sce
@@ -0,0 +1,19 @@
+clc
+//initialisation of variables
+clear
+bip= 135 //degrees
+bop= 150 //degrees
+bot= 140 //degrees
+bos= 137 //degrees
+r= 1.8
+r1= 1.8
+r2= 0.7
+r3= 0.95
+//CALCULATIONS
+R= (1+(cotd(bip)/cotd(bos)))*r^2-r1*(cotd(bop)/cotd(bos))
+R1= r2*r3^2*(1+(cotd(bip)/cotd(bos)))-(cotd(bot)/cotd(bos))
+R2= (R1-R)/(R-1)
+//RESULTS
+printf ('R1 = %.2f',R) 
+printf ('\n R2 = %.2f',R1) 
+printf ('\n Torque ratio = %.2f',R2) 
diff --git a/2504/CH14/EX14.1/14_1.sce b/2504/CH14/EX14.1/14_1.sce
new file mode 100755
index 000000000..e23cda12e
--- /dev/null
+++ b/2504/CH14/EX14.1/14_1.sce
@@ -0,0 +1,27 @@
+clc
+//initialisation of variables
+clear
+a= 60.5
+Q= 0.2 //ft^3/sec
+d= 3 //in
+u= 0.0325
+g= 32.2 //ft/sec^2
+T= [50.0 60.0 70.0 80.0 90.0 100.0]
+Ep= [294.5 188.6 113.2 60.4 37.7 24.5]
+Eh= [0 69.9 139.8 209.7 279.5 349.4]
+Et= [295 258 253 270 317 374]
+//CALCULATIONS
+re= a*4*Q/(%pi*(d/12)*u*g)
+//RESULTS
+printf ('Reynolds Number = %.1f ',re)
+disp(T)
+disp(Ep)
+disp(Eh)
+disp(Et)
+plot(T,Ep)
+plot(T,Eh)
+plot(T,Et)
+
+xtitle("","T (F)", "Eh,Ep,Eh&Ep (kW)")
+
+
diff --git a/2504/CH14/EX14.2/14_2.sce b/2504/CH14/EX14.2/14_2.sce
new file mode 100755
index 000000000..526b670c3
--- /dev/null
+++ b/2504/CH14/EX14.2/14_2.sce
@@ -0,0 +1,17 @@
+clc
+//initialisation of variables
+clear
+wcb= 2 //ton
+wc= 100 //ton
+wa= 6.5 //ton
+wca= 20 
+r= 0.8
+r1= 1.2
+//CALCULATIONS
+wca1= wc/wa
+wca2= wcb*(wca1/wca)^1.5
+Wca= wcb*r^(9/4)*(1/r1)^(9/4)*(wca1/wca)^1.5
+//RESULTS
+printf ('(Wc/W)a = %.2f ',wca1)
+printf ('\n Wc,a = %.2f ton',wca2)
+printf ('\n Wc,a = %.2f ton',Wca)
diff --git a/2504/CH2/EX2.1/2_1.sce b/2504/CH2/EX2.1/2_1.sce
new file mode 100755
index 000000000..1b370f4ea
--- /dev/null
+++ b/2504/CH2/EX2.1/2_1.sce
@@ -0,0 +1,14 @@
+clc
+//initialisation of variables
+clear
+r= 4
+l1= 4 //units
+l2= 10 //units
+//CALCULATIONS
+sxy= (4/r)
+sxy1= l1^2
+sxy2= l2^2
+//RESULTS
+printf ('x^2+4*y^2 = %.f ',sxy)
+printf ('\n x^2+4*y^2 = %.f ',sxy1)
+printf ('\n x^2+4*y^2 = %.f ',sxy2)
diff --git a/2504/CH2/EX2.3/2_3.sce b/2504/CH2/EX2.3/2_3.sce
new file mode 100755
index 000000000..a8acf0281
--- /dev/null
+++ b/2504/CH2/EX2.3/2_3.sce
@@ -0,0 +1,28 @@
+clc
+//initialisation of variables
+clear
+vo= 10 //ft/sec
+a= 0.5 //ft^-1
+b= 1 //ft
+x= -2 //ft
+y= 2 //ft
+b1= 2
+a1= 3/5 //ft
+//CALCULATIONS
+Vx= vo/(a*x^2+b)
+Vy= -2*a*b*vo*x*y/(a*x^2+b)^2
+V= sqrt(Vx^2+Vy^2)
+fx= -2*a*b^2*vo^2*x/(a*x^2+b)^3
+fy= 2*a*b^2*vo^2*y*(b-a*x^2)/(a*x^2+b)^4
+f= sqrt(fx^2+fy^2)
+r= b1^2/a1
+f1= f*r
+//RESULTS
+printf ('Vx = %.2f ft/sec',Vx)
+printf ('\n Vx = %.2f ft/sec',Vy)
+printf ('\n V = %.2f ft/sec',V)
+printf ('\n fx = %.2f ft/sec^2',fx)
+printf ('\n fy = %.2f ft/sec^2',fy)
+printf ('\n f = %.2f ft/sec^2',f)
+printf ('\n r = %.2f in the present case',r)
+printf ('\n f1 = %.2f ft/sec^2',f1)
diff --git a/2504/CH2/EX2.4/2_4.sce b/2504/CH2/EX2.4/2_4.sce
new file mode 100755
index 000000000..7e471cd19
--- /dev/null
+++ b/2504/CH2/EX2.4/2_4.sce
@@ -0,0 +1,10 @@
+clc
+//initialisation of variables
+clear
+r= 1/5
+b1= 2 //ft
+a1= 3/5 //ft
+//CALCULATIONS
+r= (a1*b1)^2*r
+//RESULTS
+printf ('ratio of resultant forces acting on coorresponding fluid elements = %.2f ',r)
diff --git a/2504/CH2/EX2.5/2_5.sce b/2504/CH2/EX2.5/2_5.sce
new file mode 100755
index 000000000..451fae2ac
--- /dev/null
+++ b/2504/CH2/EX2.5/2_5.sce
@@ -0,0 +1,17 @@
+clc
+//initialisation of variables
+clear
+vos= 70 //ft/sec
+as= 78 //ft
+am= 72 //ft
+ls1= 6 //ft
+lm= 2 //ft
+um= 386 //ft/sec
+us= 372 //ft/sec
+dm= 0.4
+//CALCULATIONS
+vom= vos*as*ls1*um/(am*lm*us)
+Ds= dm*(am/as)*(us/um)^2
+//RESULTS
+printf ('Air speed = %.f ft/sec',vom)
+printf ('\n Ds = %.3f lbf',Ds)
diff --git a/2504/CH2/EX2.6/2_6.sce b/2504/CH2/EX2.6/2_6.sce
new file mode 100755
index 000000000..56d92a38f
--- /dev/null
+++ b/2504/CH2/EX2.6/2_6.sce
@@ -0,0 +1,17 @@
+clc
+//initialisation of variables
+clear
+vom= 236 //ft/sec
+as= 0.072 //ft
+am= 62.4 //ft
+ls1= 2 //ft
+lm= 8 //ft
+um= 248 //ft/sec
+us= 3.86 //ft/sec
+r= 0.4/3.3
+//CALCULATIONS
+voh= vom*as*ls1*um/(am*lm*us)
+Ds= r*(as/am)*(um/us)^2*(ls1/lm)*(lm-ls1)
+//RESULTS
+printf ('Air speed = %.2f ft/sec',voh)
+printf ('\n Drag force = %.3f lbf',Ds)
diff --git a/2504/CH2/EX2.7/2_7.sce b/2504/CH2/EX2.7/2_7.sce
new file mode 100755
index 000000000..f53db92d5
--- /dev/null
+++ b/2504/CH2/EX2.7/2_7.sce
@@ -0,0 +1,19 @@
+clc
+//initialisation of variables
+clear
+To1= 540 //R
+po3= 12.6 //lbf/in^2
+l3= 3 //ft
+po1= 14.7 //lbf/in^2
+l1= 1 //ft
+vo1= 500 //ft/sec
+r= 0.83
+P1= 1 //lbf/in^2
+//CALCULATIONS
+To3= To1*(po3*l3/(po1*l1))^r
+Vo3= vo1*sqrt(To3/To1)
+P3= P1*po3*l3/(po1*l1)
+//RESULTS
+printf ('To3 = %.f R',To3)
+printf ('\n Vo3 = %.f ft/sec',Vo3)
+printf ('\n P3 = %.2f lbf/ft',P3)
diff --git a/2504/CH3/EX3.1/3_1.sce b/2504/CH3/EX3.1/3_1.sce
new file mode 100755
index 000000000..6c39486bf
--- /dev/null
+++ b/2504/CH3/EX3.1/3_1.sce
@@ -0,0 +1,18 @@
+clc
+//initialisation of variables
+clear
+g= 32.2 //ft/sec^2
+t= 1 //hr
+g1= 32.2 //ft/sec^2
+g2= 32.2 //lbm ft/lbf
+u= 2.4*10^-5 //lbf sec/ft^2
+//CALCULATIONS
+q2= g*(t*60*60)^2
+go= g*(t*60*60)^2
+q3= g/g2
+u1= u/(t*60*60)
+//RESULTS
+printf ('q2 = %.2e lbm ft/lbf hr^2',q2)
+printf ('\n go = %.2e lbm ft/lbf hr^2',go)
+printf ('\n go = %.f slug ft/lbf sec^2',q3)
+printf ('\n viscosity = %.2e lbf hr/ft^2',u1)
diff --git a/2504/CH3/EX3.2/3_2.sce b/2504/CH3/EX3.2/3_2.sce
new file mode 100755
index 000000000..7afd140c6
--- /dev/null
+++ b/2504/CH3/EX3.2/3_2.sce
@@ -0,0 +1,9 @@
+clc
+//initialisation of variables
+clear
+g= 32.2 //ft/sec^2
+m= 1 //lb
+//CALCULATIONS
+m1= g/m
+//RESULTS
+printf ('1 lbf/sec ft^2 = %.1f lbm/ft sec',m1)
diff --git a/2504/CH3/EX3.5/3_5.sce b/2504/CH3/EX3.5/3_5.sce
new file mode 100755
index 000000000..1227c1dd2
--- /dev/null
+++ b/2504/CH3/EX3.5/3_5.sce
@@ -0,0 +1,20 @@
+clc
+//initialisation of variables
+clear
+n1=1
+n2= 3
+n3=2
+//CALCULATIONS
+a1= -n1
+a2= -n3
+a3= -n1-a2+3*a1
+b1= -n1
+b2= -n1
+b3= n1+3*b1-b2
+//RESULTS
+printf ('a1 = %.f ',a1)
+printf ('\n a2 = %.f ',a2)
+printf ('\n a3 = %.f ',a3)
+printf ('\n b1 = %.f ',b1)
+printf ('\n b2 = %.f ',b2)
+printf ('\n b3 = %.f ',b3)
diff --git a/2504/CH5/EX4.1/5_1.sce b/2504/CH5/EX4.1/5_1.sce
new file mode 100755
index 000000000..e59890449
--- /dev/null
+++ b/2504/CH5/EX4.1/5_1.sce
@@ -0,0 +1,22 @@
+clc
+//initialisation of variables
+clear
+w= 20 //lbm/sec
+sh= 0.004
+m1= 0.12 //lbm/sec
+m2= 12.2 //lbm/sec
+m3= 0.130 //lbm/sec
+//CALCULATIONS
+mw1= w/((1/sh)+1)
+ma1= w-mw1
+ma4= ma1-m2
+mw4= mw1+m1-m3
+mr= ma4+mw4
+sh1= mw4/ma4
+//RESULTS
+printf ('mw1 = %.4f lbm/sec',mw1)
+printf ('\n ma1 = %.2f lbm/sec',ma1)
+printf ('\n ma4 = %.2f lbm/sec',ma4)
+printf ('\n mw4 = %.2f lbm/sec',mw4)
+printf ('\n mr = %.2f lbm/sec',mr)
+printf ('\n specific humidity = %.5f lbm/sec',sh1)
diff --git a/2504/CH5/EX5.2/5_2.sce b/2504/CH5/EX5.2/5_2.sce
new file mode 100755
index 000000000..87648f54e
--- /dev/null
+++ b/2504/CH5/EX5.2/5_2.sce
@@ -0,0 +1,13 @@
+clc
+//initialisation of variables
+clear
+w= 62.4 //lbf/ft^3
+g= 32.2 //ft/sec^2
+v= 86.5 //ft/sec
+d2= 3 //in
+d1= 6 //in
+dp= 50 //lbf/in^2
+//CALCULATIONS
+Fb= -((%pi*(w/g)*v^2*(1/d1)^2*(1-(d2/d1)^2)*0.25)-dp*144*(%pi/4)*(1/d2)^2)
+//RESULTS
+printf ('Load on the bolts = %.f lbf',Fb)
diff --git a/2504/CH5/EX5.3/5_3.sce b/2504/CH5/EX5.3/5_3.sce
new file mode 100755
index 000000000..4effb4748
--- /dev/null
+++ b/2504/CH5/EX5.3/5_3.sce
@@ -0,0 +1,11 @@
+clc
+//initialisation of variables
+clear
+F1= 237 //lb
+dp= 50 //lbf/in^2
+D= 6 //in
+//CALCULATIONS
+F2= dp*144*(%pi/4)*(D/12)^2
+Fb= F1-F2
+//RESULTS
+printf ('Load on the bolts = %.f lbf',Fb)
diff --git a/2504/CH5/EX5.5/5_5.sce b/2504/CH5/EX5.5/5_5.sce
new file mode 100755
index 000000000..9348a1f49
--- /dev/null
+++ b/2504/CH5/EX5.5/5_5.sce
@@ -0,0 +1,21 @@
+clc
+//initialisation of variables
+clear
+w1= 0.0286 //lbm/ft^3
+v= 2500 //ft/sec
+A= 2.5 //ft^3
+k= 0.015
+p2= 700 //lbf/ft^2
+p1= 628 //lbf/ft^2
+v2= 3500 //ft/sec
+g= 32.17 //ft/sec^2
+//CALCULATIONS
+ma= w1*v*A
+mf= k*ma
+mt= ma+mf
+F= (p2-p1)*A+(mt*v2/g)-(ma*v/g)
+//RESULTS
+printf ('air mass flow rate = %.2f lbm/sec',ma)
+printf ('\n Fuel flow rate = %.2f lbm/sec',mf)
+printf ('\n Fuel flow rate at station 2 = %.2f lbm/sec',mt)
+printf ('\n Thrust force = %.f lbf',F)
diff --git a/2504/CH6/EX6.1/6_1.sce b/2504/CH6/EX6.1/6_1.sce
new file mode 100755
index 000000000..9ba335e79
--- /dev/null
+++ b/2504/CH6/EX6.1/6_1.sce
@@ -0,0 +1,12 @@
+clc
+//initialisation of variables
+clear
+g= 32.2 //ft/sec^2
+h= 4 //ft
+d2= 0.16 //ft
+d1= 0.3 //ft
+dp= 12.6 //lbf/in^2
+//CALCULATIONS
+Q= (%pi/4)*sqrt(2*g*dp*h/((1/d2^4)-(1/d1^4)))
+//RESULTS
+printf ('Volumetric flow rate = %.2f ft^3/sec',Q)
diff --git a/2504/CH6/EX6.10/6_10.sce b/2504/CH6/EX6.10/6_10.sce
new file mode 100755
index 000000000..cd52e32a9
--- /dev/null
+++ b/2504/CH6/EX6.10/6_10.sce
@@ -0,0 +1,18 @@
+clc
+//initialisation of variables
+clear
+Q= 400 //ft^3/sec
+b1= 25 //ft
+b2= 20 //ft
+h1= 6 //ft
+z1= 2.5 //ft
+z2= 3.3 //ft
+g= 32.2 //ft/sec^2
+//CALCULATIONS
+hc1= (Q^2/(g*b1^2))^(1/3)
+hc2= (Q^2/(g*b2^2))^(1/3)
+r= (hc1/hc2)*((h1/hc1)+0.5*(hc1/h1)^2)+((z1-z2)/hc2)
+//RESULTS
+printf ('hc1 = %.3f ft',hc1)
+printf ('\n hc2 = %.3f ft',hc2)
+printf ('\n Ratio = %.3f ',r)
diff --git a/2504/CH6/EX6.2/6_2.sce b/2504/CH6/EX6.2/6_2.sce
new file mode 100755
index 000000000..04ce4a65c
--- /dev/null
+++ b/2504/CH6/EX6.2/6_2.sce
@@ -0,0 +1,10 @@
+clc
+//initialisation of variables
+clear
+w= 0.0765 //lbm/ft^3
+v1= 120 //ft/sec
+g= 32.2 //ft/sec^2
+//CALCULATIONS
+dp= w*v1^2/(2*2*g)
+//RESULTS
+printf ('Difference in pressure= %.2f lbf/ft^2',dp)
diff --git a/2504/CH6/EX6.3/6_3.sce b/2504/CH6/EX6.3/6_3.sce
new file mode 100755
index 000000000..a1e1604b9
--- /dev/null
+++ b/2504/CH6/EX6.3/6_3.sce
@@ -0,0 +1,13 @@
+clc
+//initialisation of variables
+clear
+r=1.4
+g= 32.2 //ft/sec^2
+R= 53.3 //lbf ft/lbm
+T1= 760 //R
+p2= 2 //lbf/in^2
+p1= 3 //lbf/in^2
+//CALCULATIONS
+V2= sqrt(2*r*R*g*T1*(1-(p2/p1)^((r-1)/r))/(r-1))
+//RESULTS
+printf ('Velocity in working section = %.f ft/sec',V2)
diff --git a/2504/CH6/EX6.4/6_4.sce b/2504/CH6/EX6.4/6_4.sce
new file mode 100755
index 000000000..fae855944
--- /dev/null
+++ b/2504/CH6/EX6.4/6_4.sce
@@ -0,0 +1,25 @@
+clc
+//initialisation of variables
+clear
+r= 1.4
+g= 32.2 //ft/sec^2
+R= 53.3 //lbf ft/lbm
+T= 32 //C
+T1= 2000 //R
+r1= 1.32
+p= 1440 //lbf/in^2
+v1= 1.2306 //ft^3/lbm
+v2= 1.2546 //ft^3/lbm
+bm= 3.13*10^5 //lbf/in^2
+w= 62.4 //lbf/ft^3
+//CALCULATIONS
+a1= sqrt(r*R*(460+T)*g)
+a2= sqrt(r1*R*T1*g)
+r2= p/(v1-v2)
+a3= sqrt(-g*(v1+v2)^2*0.5^2*r2)
+a4= sqrt(bm*144*g/w)
+//RESULTS
+printf ('Acoustic veloctiy = %.f ft/sec',a1)
+printf ('\n Acoustic veloctiy = %.f ft/sec',a2)
+printf ('\n Acoustic veloctiy = %.f ft/sec',a3)
+printf ('\n Acoustic veloctiy = %.f ft/sec',a4)
diff --git a/2504/CH6/EX6.5/6_5.sce b/2504/CH6/EX6.5/6_5.sce
new file mode 100755
index 000000000..bc9360600
--- /dev/null
+++ b/2504/CH6/EX6.5/6_5.sce
@@ -0,0 +1,28 @@
+clc
+//initialisation of variables
+clear
+r= 1.4
+ma2= 2.5 //ft/sec
+g= 32.17 //ft/sec^2
+p2= 1 //lbf/in^2
+ps= 17.08 //lbf/in^2
+ps2= 75 //lbf/in^2
+Ts= 720 //R
+R= 53.3 //lbf ft/lbm
+A= 4 //ft^2
+ps3= 0.4 //lbf/in^2
+A2= 0.685 //ft^2
+P= 5 //per cent
+//CALCULATIONS
+R1= (1+0.5*(r-1)*ma2^2)^(r/(r-1))
+R2= (2*(r/(r-1))*(p2/ps)^(2/(r))*(1-(p2/ps)^((r-1)/r)))^0.5
+m2= R2*ps2*144*(g/(R*Ts))^0.5*0.1
+m= m2*A
+At= A*R2/A2
+m1= m*(1-(P/100))
+mrp= (1-(P/100))*R2
+//RESULTS
+printf ('Mass flow rate= %.1f lbm/sec',m)
+printf ('\n Area of throat= %.3f ft^2',At)
+printf ('\n Mass flow rate= %.1f lbm/sec',m1)
+printf ('\n Mass flow rate parameter = %.4f',mrp)
diff --git a/2504/CH6/EX6.7/6_7.sce b/2504/CH6/EX6.7/6_7.sce
new file mode 100755
index 000000000..676d7e7ac
--- /dev/null
+++ b/2504/CH6/EX6.7/6_7.sce
@@ -0,0 +1,14 @@
+clc
+//initialisation of variables
+clear
+r1= 10 //ft
+r2= 0.2 //miles
+w= 0.0765 //lbm/ft^2
+g= 32.2 //ft/sec^2
+V1= 1 //ft/sec
+//CALCULATIONS
+k= r2*5280*V1 
+dp= w*k^2*10*((1/r1)^2-(1/(5280*r2))^2)/(2*g)
+//RESULTS
+printf ('k = %.f ft^2/sec',k)
+printf ('\n pressure difference = %.1f lbf/ft^2',dp)
diff --git a/2504/CH6/EX6.9/6_9.sce b/2504/CH6/EX6.9/6_9.sce
new file mode 100755
index 000000000..fe131e02e
--- /dev/null
+++ b/2504/CH6/EX6.9/6_9.sce
@@ -0,0 +1,16 @@
+clc
+//initialisation of variables
+clear
+w= 12 //ft
+q= 300 //ft^3/sec
+h= 10 //ft
+g= 32.2 //ft/sec^2
+R= 2.6
+//CALCULATIONS
+hc= ((q/12)^2/g)^(1/3)
+r= h/hc
+h1= hc*(((h/hc)+0.5*(hc/h)^2)-0.5*R^2)
+//RESULTS
+printf ('hc = %.2f ft',hc)
+printf ('\n stream depth = %.2f ft',h1)
+
diff --git a/2504/CH7/EX7.1/7_1.sce b/2504/CH7/EX7.1/7_1.sce
new file mode 100755
index 000000000..e353c6823
--- /dev/null
+++ b/2504/CH7/EX7.1/7_1.sce
@@ -0,0 +1,9 @@
+clc
+//initialisation of variables
+clear
+r= 1.5
+f= 0.025
+//CALCULATIONS
+r1= (2/f)*(r^2-1)
+//RESULTS
+printf ('ratio L/D2 = %.f',r1)
diff --git a/2504/CH7/EX7.10/7_10.sce b/2504/CH7/EX7.10/7_10.sce
new file mode 100755
index 000000000..79f22c8de
--- /dev/null
+++ b/2504/CH7/EX7.10/7_10.sce
@@ -0,0 +1,25 @@
+clc
+//initialisation of variables
+clear
+p2= 67.2 //lbf/in^2
+p1= 63 //lbf/in62
+r= 1.4
+n= 0.6
+T1= 870 //R
+ma1= 0.8 //ft/sec
+//CALCULATIONS
+dt= (p2/p1)^((r-1)/r)-1
+dt1= dt/n
+T2= T1*(1+dt1)
+Ts1= T1*(1+0.5*(r-1)*ma1^2)
+ps1= p1*(1+0.5*(r-1)*ma1^2)^(r/(r-1))
+ps2= p2*(Ts1/T2)^(r/(r-1))
+dp= ps1-ps2
+//RESULTS
+ printf ('dT = %.5f ',dt)
+ printf ('\n dT1 = %.5f ',dt1)
+ printf ('\n Temperature = %.f R',T2)
+ printf ('\n Temperature = %.1f R',Ts1)
+ printf ('\n Pressure = %.1f lbf/in^2',ps1)
+  printf ('\n Pressure = %.1f lbf/in^2',ps2)
+   printf ('\n pressure difference = %.1f lbf/in^2',dp)
diff --git a/2504/CH7/EX7.11/7_11.sce b/2504/CH7/EX7.11/7_11.sce
new file mode 100755
index 000000000..eef7c66cd
--- /dev/null
+++ b/2504/CH7/EX7.11/7_11.sce
@@ -0,0 +1,29 @@
+clc
+//initialisation of variables
+clear
+r= 1.4
+ma3= 3 //ft/sec
+ps= 80 //lbf/ft^2
+Ts= 840 //R
+r1= 53.3 //ft lbm/ft^3
+A3= 2 //in^2
+g= 32.2 //ft/sec^2
+ma1= 1.6
+//CALCULATIONS
+R= (1+(r-1)*0.5*ma3^2)^(r/(r-1))
+p3= ps/R
+R1= 1+0.5*(r-1)*ma3^2
+T3= Ts/R1
+w3= p3*144/(r1*T3)
+V3= ma3*sqrt(r*r1*g*T3)
+m= w3*V3*A3/144
+ra= ((r+1)/(2*r*ma1^2-(r-1)))^(1/(r-1))*(0.5*(r+1)*ma1^2/(1+0.5*(r-1)*ma1^2))^(r/(r-1))
+ps2= ps*ra
+dp= ps-ps2
+//RESULTS
+ printf ('outlet pressure = %.2f lbf/in^2',p3)
+  printf ('\n outlet temperature = %.f R',T3)
+  printf ('\n mass flow rate = %.3f lbm/sec',m)
+  printf ('\n mass flow rate = %.3f lbm/sec',m)
+   printf ('\n ps2 = %.1f lbf/in^2',ps2)
+   printf ('\n pressure difference = %.1f lbf/in^2',dp)
diff --git a/2504/CH7/EX7.2/7_2.sce b/2504/CH7/EX7.2/7_2.sce
new file mode 100755
index 000000000..d10e67017
--- /dev/null
+++ b/2504/CH7/EX7.2/7_2.sce
@@ -0,0 +1,22 @@
+clc
+//initialisation of variables
+clear
+a= 6 //degrees
+r= 1.5
+l= 100 //ft
+f= 0.025
+K= 0.15
+//CALCULATIONS
+R= r^4-1
+R1= cotd(a/2)*(1-(1/r))
+p1= f*l
+p2= 2.5*(l-p1)/l
+p3= (1-r^2)^2
+p4= K*p3
+pt= p4+p2
+//RESULTS
+printf ('lowest ratio = %.2f',R)
+printf ('\n contribtuion of friction in pipe = %.1f lbf/ft^2',p1)
+printf ('\n contribtuion of diffuser in pipe = %.3f lbf/ft^2',p2)
+printf ('\n stagnant pressure drop = %.3f lbf/ft^2',p3)
+printf ('\n contribtuion of friction in pipe after reduction = %.3f lbf/ft^2',pt)
diff --git a/2504/CH7/EX7.3/7_3.sce b/2504/CH7/EX7.3/7_3.sce
new file mode 100755
index 000000000..69cf756f9
--- /dev/null
+++ b/2504/CH7/EX7.3/7_3.sce
@@ -0,0 +1,21 @@
+clc
+//initialisation of variables
+clear
+d= 4 //in
+q= 0.5 //ft^3/sec
+w= 62.4 //lb/ft^3
+u= 2.7*10^-5 //lbf sec/ft^2
+e= 0.0005 //ft
+g= 32.1 //ft/sec^2
+f= 0.0235
+lt= 400 //ft
+//CALCULATIONS
+V= 4*q/(%pi*(d/12)^2)
+Re= w*V*(d/12)/(u*g)
+r= e/(d/12)
+dz= (V^2/(2*g))*(1.7+f*lt/(d/12))
+//RESULTS
+printf ('mean flow velocity = %.2f ft/sec',V)
+printf ('\n Reynolds number = %.2e',Re)
+printf ('\n Relative roughness = %.4f',r)
+printf ('\n difference in the levels of water = %.1f ft',dz)
diff --git a/2504/CH7/EX7.4/7_4.sce b/2504/CH7/EX7.4/7_4.sce
new file mode 100755
index 000000000..8f59b08ef
--- /dev/null
+++ b/2504/CH7/EX7.4/7_4.sce
@@ -0,0 +1,9 @@
+clc
+//initialisation of variables
+clear
+d= 4 //in
+v= 6.64 //ft/sec
+//CALCULATIONS
+Q= %pi*0.25*(d/12)^2*v
+//RESULTS
+printf ('Flow rate= %.3f ft^3/sec',Q)
diff --git a/2504/CH7/EX7.5/7_5.sce b/2504/CH7/EX7.5/7_5.sce
new file mode 100755
index 000000000..eafb56f6d
--- /dev/null
+++ b/2504/CH7/EX7.5/7_5.sce
@@ -0,0 +1,9 @@
+clc
+//initialisation of variables
+clear
+d= 0.366 //ft
+i= 12
+//CALCULATIONS
+pd= d*i
+//RESULTS
+printf ('Required pipe diameter = %.2f in',pd)
diff --git a/2504/CH7/EX7.6/7_6.sce b/2504/CH7/EX7.6/7_6.sce
new file mode 100755
index 000000000..9d2ed5b51
--- /dev/null
+++ b/2504/CH7/EX7.6/7_6.sce
@@ -0,0 +1,20 @@
+clc
+//initialisation of variables
+clear
+Ps1= 1050 //lbf/ft^2
+fr= 10.7
+p= 36.6 //lbf/ft^2
+p1= 195 //lbf/ft^2
+fr1= 16
+fr2= 1.8
+//CALCULATIONS
+p2= fr*p
+dp= Ps1-p2
+lc= dp/p
+sp= Ps1+p1-p*(fr1+fr2)
+lc1= sp/p
+//RESULTS
+printf ('Pressure = %.f lbf/ft^2',p1)
+printf ('\n pressure difference = %.f lbf/ft^2',dp)
+printf ('\n Loss coefficient = %.f ',lc)
+printf ('\n Loss coefficient = %.1f ',lc1)
diff --git a/2504/CH7/EX7.7/7_7.sce b/2504/CH7/EX7.7/7_7.sce
new file mode 100755
index 000000000..299851d2f
--- /dev/null
+++ b/2504/CH7/EX7.7/7_7.sce
@@ -0,0 +1,26 @@
+clc
+//initialisation of variables
+clear
+p1= 50 //lbf/in^2
+R= 96.3 //ft lbf/lbm R
+T= 80 //F
+p2= 20 //lbf/in^2
+r= 1.31
+u= 2.34*10^-7 //lbf sec/ft^2
+e= 0.00005 //ft
+m= 5*10^4 //lbm/sec
+d= 1.5 //ft
+g= 32.2 //ft/sec^2
+f= 0.113
+//CALCULATIONS
+w1= p1*144/(R*(460+T))
+V1= 4*(m/3600)/(%pi*w1*d^2)
+Ma1= V1/(r*R*g*(460+T))^0.5
+Re= w1*V1*d/(u*g)
+dx= (((1/(r*Ma1^2))*10*(1-(p2/p1)^2))+log(p2/p1))*d/f
+//RESULTS
+printf ('density = %.3f lbm/ft^3',w1)
+printf ('\n mean flow velocity = %.1f ft/sec',V1)
+printf ('\n Match number = %.4f ',Ma1)
+printf ('\n Reynolds number = %.2e ',Re)
+printf ('\n Length of pipe = %.2e ft',dx)
diff --git a/2504/CH7/EX7.9/7_9.sce b/2504/CH7/EX7.9/7_9.sce
new file mode 100755
index 000000000..9dfa64453
--- /dev/null
+++ b/2504/CH7/EX7.9/7_9.sce
@@ -0,0 +1,21 @@
+clc
+//initialisation of variables
+clear
+r= 1.4
+R= 53.3 //ft lbf/lbm R
+g= 32.2 //ft/sec^2
+T1= 410 //R
+v= 2500 //ft/sec
+P1= 628 //lbf/in^2
+//CALCULATIONS
+v1= sqrt(r*g*R*T1)
+Ma1= v/v1
+Ts1= T1*(1+0.5*(r-1)*Ma1^2)
+Ps1= P1*(1+0.5*(r-1)*Ma1^2)^(r/(r-1))
+Ps2= Ps1*((r+1)/(2*r*Ma1^2-r+1))^(1/(r-1))*(0.5*(r+1)*Ma1^2/(1+0.5*(r-1)*Ma1^2))^(r/(r-1))
+//RESULTS
+printf ('acoustic velocity = %.f ft/sec',v1)
+printf ('\n Match number = %.2f ',Ma1)
+printf ('\n Stagnition temperature = %.f R',Ts1)
+printf ('\n Stagnition pressure = %.f lbf/ft^2',Ps1)
+printf ('\n Stagnition pressure = %.f lbf/ft^2',Ps2)
diff --git a/2504/CH8/EX8.2/8_2.sce b/2504/CH8/EX8.2/8_2.sce
new file mode 100755
index 000000000..c3ea8a79f
--- /dev/null
+++ b/2504/CH8/EX8.2/8_2.sce
@@ -0,0 +1,12 @@
+clc
+//initialisation of variables
+clear
+w= 78.9 //lbf.ft^3
+d= 0.01 //in
+u= 8.67*10^-9 //lbf/ hr ft^2
+h= 18 //ft
+l= 10 //ft
+//CALCULATIONS
+Q= %pi*w*(d/12)^4*(h+l)/(l*128*u)
+//RESULTS
+printf ('Flow rate = %.2e ft^3/hr',Q)
diff --git a/2504/CH8/EX8.3/8_3.sce b/2504/CH8/EX8.3/8_3.sce
new file mode 100755
index 000000000..2b51f4cb7
--- /dev/null
+++ b/2504/CH8/EX8.3/8_3.sce
@@ -0,0 +1,17 @@
+clc
+//initialisation of variables
+clear
+x= 0.1 //ft
+w= 62.4 //lbf/ft^3
+v1= 10 //ft/sec
+u= 2.4*10^-5 //lbf/ft
+g= 32.2 //ft/sec^2
+k= 4.91
+//CALCULATIONS
+s= k*x*(w*v1*x/(u*g))^-0.5
+Tw= 0.332*w*v1^2*(u*g/(w*x*v1))^0.5/g
+R= 0.332*6*Tw
+//RESULTS
+printf ('Thickness = %.2e*ft',s)
+printf ('\n Shear stress = %.3f lbf/ft^2',Tw)
+printf ('\n Shear stress = %.3f lbf/ft',R)
diff --git a/2504/CH8/EX8.4/8_4.sce b/2504/CH8/EX8.4/8_4.sce
new file mode 100755
index 000000000..5b3629b13
--- /dev/null
+++ b/2504/CH8/EX8.4/8_4.sce
@@ -0,0 +1,11 @@
+clc
+//initialisation of variables
+clear
+r=1
+r1=1
+//CALCULATIONS
+e1= r+r1
+e2= r-r1
+//RESULTS
+printf ('vorticity = %.f*k',e1)
+printf ('\n vorticity = %.f',e2)
diff --git a/2504/CH9/EX9.1/9_1.sce b/2504/CH9/EX9.1/9_1.sce
new file mode 100755
index 000000000..12d92f1ab
--- /dev/null
+++ b/2504/CH9/EX9.1/9_1.sce
@@ -0,0 +1,22 @@
+clc
+//initialisation of variables
+clear
+n=7
+w= 62.4 //lbf/ft^3
+v= 6 //ft/sec
+d= 2 //in
+u= 2.34*10^-5 //lbf/ft^3
+f= 0.0178
+g= 32.2 //ft/sec^2
+R= 1.224
+R1= 8 //ft/sec
+//CALCULATIONS
+r= (n+1)*(2*n+1)/(2*n^2)
+Red= w*v*(d/12)/(u*g)
+C= (d/Red)^(1/7)*R*(R1/f)^(4/7)
+V = v*sqrt(f/8)
+//RESULTS
+printf ('Vmax/V = %.3f',r)
+printf ('\n Red = %.2e',Red)
+printf ('\n C = %.2f',C)
+printf ('\n Velocity = %.3f ft/sec',V)
diff --git a/2504/CH9/EX9.3/9_3.sce b/2504/CH9/EX9.3/9_3.sce
new file mode 100755
index 000000000..78a1dc278
--- /dev/null
+++ b/2504/CH9/EX9.3/9_3.sce
@@ -0,0 +1,20 @@
+clc
+//initialisation of variables
+clear
+Re= 5
+g= 32.2 //ft/sec^2
+u= 2.34*10^-5 //lbf/ft sec
+w= 62.4 //lbf/ft^3
+v= 0.283 //ft/sec
+Re1= 70
+v1= 0.0374 //ft/sec
+//CALCULATIONS
+y= Re*u*g/(w*v)
+y1= Re1*u*g/(w*v)
+y2= Re*u*g/(w*v1)
+y3= Re1*u*g/(w*v1)
+//RESULTS
+printf ('y = %.6f ft',y)
+printf ('\n y = %.5f ft',y1)
+printf ('\n y = %.5f ft',y2)
+printf ('\n y = %.4f ft',y3)
-- 
cgit