diff options
Diffstat (limited to '629/CH8')
-rw-r--r-- | 629/CH8/EX8.10/ex8_10.txt | 5 | ||||
-rw-r--r-- | 629/CH8/EX8.10/example8_10.sce | 13 | ||||
-rw-r--r-- | 629/CH8/EX8.4/ex8_4.txt | 2 | ||||
-rw-r--r-- | 629/CH8/EX8.4/example8_4.sce | 12 | ||||
-rw-r--r-- | 629/CH8/EX8.5/ex8_5.txt | 2 | ||||
-rw-r--r-- | 629/CH8/EX8.5/example8_5.sce | 12 | ||||
-rw-r--r-- | 629/CH8/EX8.6/ex8_6.txt | 3 | ||||
-rw-r--r-- | 629/CH8/EX8.6/example8_6.sce | 12 | ||||
-rw-r--r-- | 629/CH8/EX8.7/ex8_7.txt | 3 | ||||
-rw-r--r-- | 629/CH8/EX8.7/example8_7.sce | 11 | ||||
-rw-r--r-- | 629/CH8/EX8.8/ex8_8.txt | 2 | ||||
-rw-r--r-- | 629/CH8/EX8.8/example8_8.sce | 21 | ||||
-rw-r--r-- | 629/CH8/EX8.9/ex8_9.txt | 3 | ||||
-rw-r--r-- | 629/CH8/EX8.9/example8_9.sce | 19 |
14 files changed, 120 insertions, 0 deletions
diff --git a/629/CH8/EX8.10/ex8_10.txt b/629/CH8/EX8.10/ex8_10.txt new file mode 100644 index 000000000..7270b143c --- /dev/null +++ b/629/CH8/EX8.10/ex8_10.txt @@ -0,0 +1,5 @@ +
+ The velocity in the prototype = 8.4 m/s.
+
+ The water flow rate in the model = 0.89 m^3/s.
+
\ No newline at end of file diff --git a/629/CH8/EX8.10/example8_10.sce b/629/CH8/EX8.10/example8_10.sce new file mode 100644 index 000000000..c9179eecd --- /dev/null +++ b/629/CH8/EX8.10/example8_10.sce @@ -0,0 +1,13 @@ +clear
+clc
+//Example 8.10 MODELING FLOOD DISCHARGE OVER A SPILLWAY
+Lmp=1/49; //Lmp=(Lm/Lp)
+//Froude-number similitude
+//Vm/(g*Lm)=Vp/(g*Lp)
+Vm=1.2; //[m/s]
+Vp=Vm/(Lmp^(1/2))
+printf("\n The velocity in the prototype = %.1f m/s.\n",Vp)
+Amp=(Lmp)^2 //Ratio of areas, Amp=(Am/Ap)
+Qp=15000; //[m^3/s]
+Qm=Qp*Amp*Vm/Vp //[m^3/s]
+printf("\n The water flow rate in the model = %.2f m^3/s.\n",Qm)
\ No newline at end of file diff --git a/629/CH8/EX8.4/ex8_4.txt b/629/CH8/EX8.4/ex8_4.txt new file mode 100644 index 000000000..e7619c99e --- /dev/null +++ b/629/CH8/EX8.4/ex8_4.txt @@ -0,0 +1,2 @@ +
+ The air speed in the wind tunnel for scaled model and dynamically similar conditions, V = 100 m/s.
\ No newline at end of file diff --git a/629/CH8/EX8.4/example8_4.sce b/629/CH8/EX8.4/example8_4.sce new file mode 100644 index 000000000..f8b6306a0 --- /dev/null +++ b/629/CH8/EX8.4/example8_4.sce @@ -0,0 +1,12 @@ +clear
+clc
+//Example 8.4 REYNOLDS-NUMBER SIMILITUDE
+//p-prototype, m-model
+Vp=10; //speed[m/s]
+//Reynolds-number similitude, Rem=Rep
+//Vm*Lm/vm=Vp*Lp/vp
+//vm=vp
+vmp=1; //vmp=vm/vp
+Lmp=1/10; //Lmp=Lm/Lp
+Vm=Vp*vmp/Lmp //speed[m/s]
+printf("\n The air speed in the wind tunnel for scaled model and dynamically similar conditions, V = %.f m/s.\n",Vm)
\ No newline at end of file diff --git a/629/CH8/EX8.5/ex8_5.txt b/629/CH8/EX8.5/ex8_5.txt new file mode 100644 index 000000000..53b76e949 --- /dev/null +++ b/629/CH8/EX8.5/ex8_5.txt @@ -0,0 +1,2 @@ +
+ The flow rate required for the model, Q = 117 cfs.
\ No newline at end of file diff --git a/629/CH8/EX8.5/example8_5.sce b/629/CH8/EX8.5/example8_5.sce new file mode 100644 index 000000000..8b3ce150b --- /dev/null +++ b/629/CH8/EX8.5/example8_5.sce @@ -0,0 +1,12 @@ +clear
+clc
+//Example 8.5 REYNOLDS-NUMBER SIMILITUDE OF A VALVE
+//p-prototype, m-model
+Lmp=1/6; //Lmp=(Lm/Lp)
+//Vm*Lm/vm=Vp*Lp/vp, vm=vp
+Vmp=1/Lmp //Vmp=(Vm/Vp)
+Qp=700; //[cfs]
+Amp=(Lmp)^2 //Ratio of areas, Amp=(Am/Ap)
+//Discharge
+Qm=Qp*Vmp*Amp //[cfs]
+printf("\n The flow rate required for the model, Q = %.f cfs.\n",Qm)
diff --git a/629/CH8/EX8.6/ex8_6.txt b/629/CH8/EX8.6/ex8_6.txt new file mode 100644 index 000000000..02572fa11 --- /dev/null +++ b/629/CH8/EX8.6/ex8_6.txt @@ -0,0 +1,3 @@ +
+ The pressure difference between two points on the prototype = 178 Pa.
+
\ No newline at end of file diff --git a/629/CH8/EX8.6/example8_6.sce b/629/CH8/EX8.6/example8_6.sce new file mode 100644 index 000000000..32d9dfb9c --- /dev/null +++ b/629/CH8/EX8.6/example8_6.sce @@ -0,0 +1,12 @@ +clear
+clc
+//Example 8.6 APPLICATION OF PRESSURE COEFFICIENT
+//p-prototype, m-model
+Lmp=1/10; //Lmp=(Lm/Lp)
+//Vm*Lm/vm=Vp*Lp/vp, vm=vp
+Vpm=Lmp //Vpm=(Vp/Vm)
+Pm=17.8; //[kPa]
+//Pressure difference
+//Pm/(rho_m*Vm^2/2)=Pp/(rho_p*Vp^2/2)
+Pp=Pm*10^3*Vpm^2 //[Pa]
+printf("\n The pressure difference between two points on the prototype = %.f Pa.\n",Pp)
\ No newline at end of file diff --git a/629/CH8/EX8.7/ex8_7.txt b/629/CH8/EX8.7/ex8_7.txt new file mode 100644 index 000000000..0c04479df --- /dev/null +++ b/629/CH8/EX8.7/ex8_7.txt @@ -0,0 +1,3 @@ +
+ The expected drag force on the prototype = 1530 N.
+
\ No newline at end of file diff --git a/629/CH8/EX8.7/example8_7.sce b/629/CH8/EX8.7/example8_7.sce new file mode 100644 index 000000000..7755fca6f --- /dev/null +++ b/629/CH8/EX8.7/example8_7.sce @@ -0,0 +1,11 @@ +clear
+clc
+//Example 8.7 DRAG FORCE FROM WIND TUNNEL TESTING
+//p-prototype, m-model
+Lmp=1/10; //Lmp=(Lm/Lp)
+//Vm*Lm/vm=Vp*Lp/vp, vm=vp
+Vpm=Lmp //Vpm=(Vp/Vm)
+//Fm/(rho_m*Lm^2*Vm^2/2)=Fp/(rho_p*Lp^2*Vp^2/2)
+Fm=1530; //force[N]
+Fp=Fm*Vpm^2/Lmp^2 //[N]
+printf("\n The expected drag force on the prototype = %.f N.\n",Fp)
\ No newline at end of file diff --git a/629/CH8/EX8.8/ex8_8.txt b/629/CH8/EX8.8/ex8_8.txt new file mode 100644 index 000000000..4679a232c --- /dev/null +++ b/629/CH8/EX8.8/ex8_8.txt @@ -0,0 +1,2 @@ +
+ The pressure drop in the actual nozzle = 0.0625 psid.
\ No newline at end of file diff --git a/629/CH8/EX8.8/example8_8.sce b/629/CH8/EX8.8/example8_8.sce new file mode 100644 index 000000000..65566fd13 --- /dev/null +++ b/629/CH8/EX8.8/example8_8.sce @@ -0,0 +1,21 @@ +clear
+clc
+//Example 8.8 MEASURING HEAD LOSS IN NOZZLE IN REVERSE FLOW
+//p-prototype, m-model
+Vm=20; //[ft/s]
+Dm=3/12; //[ft]
+vm=1.22*10^-5; //[ft^2/s]
+Vp=5; //[ft/s]
+Dp=3; //[ft]
+vp=1.41*10^-5; //[ft^2/s]
+//Reynolds numbers
+Rem=Vm*Dm/vm
+Rep=Vp*Dp/vp
+rho=1.94; //[slugs/ft^3]
+Pm=1; //pressure [lbf/in^2]
+//Pressure coefficient
+CPm=Pm*144/(rho*Vm^2/2)
+//Both Rep, Rem >10^3, therefore
+CPp=CPm
+Pp=(CPp*rho*Vp^2/2)/144 //[lbf/in^2]
+printf("\n The pressure drop in the actual nozzle = %.4f psid.\n",Pp)//
\ No newline at end of file diff --git a/629/CH8/EX8.9/ex8_9.txt b/629/CH8/EX8.9/ex8_9.txt new file mode 100644 index 000000000..99b8de7d2 --- /dev/null +++ b/629/CH8/EX8.9/ex8_9.txt @@ -0,0 +1,3 @@ +
+ The minimum required wind tunnel speed = 3.8 m/s.
+
\ No newline at end of file diff --git a/629/CH8/EX8.9/example8_9.sce b/629/CH8/EX8.9/example8_9.sce new file mode 100644 index 000000000..d98e2c7b1 --- /dev/null +++ b/629/CH8/EX8.9/example8_9.sce @@ -0,0 +1,19 @@ +clear
+clc
+//Example 8.9 MODEL TESTS FOR DRAG FORCE ON AN AUTOMOBILE
+c=1235; //[km/hr]
+//Vm*Lm/vm=Vp*Lp/vp, vm=vp
+Lp=0.4; //[m]
+Lm=0.4; //[m]
+Vp=100; //[km/hr]
+Vm=Vp*Lp/Lm //[km/hr]
+//Mach number
+Mm=Vm/c
+//Mm is too high for test models and results in unwanted compressibility effects.
+mu=1.51*10^-5; //[m^2/s]
+Rep=Vp*0.278*Lp/mu
+//CFm=CFp, if Rem>=10^5
+Rem=10^5;
+//Wind tunnel speed
+Vm=Rem*mu/Lm //[m/s]
+printf("\n The minimum required wind tunnel speed = %.1f m/s.\n",Vm)
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