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

---
 581/CH7/EX7.3/Example7_3.sce | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100755 581/CH7/EX7.3/Example7_3.sce

(limited to '581/CH7/EX7.3')

diff --git a/581/CH7/EX7.3/Example7_3.sce b/581/CH7/EX7.3/Example7_3.sce
new file mode 100755
index 000000000..12b1ffbd5
--- /dev/null
+++ b/581/CH7/EX7.3/Example7_3.sce
@@ -0,0 +1,34 @@
+
+clear;
+clc;
+
+printf("\t Example 7.3\n");
+
+m=21.5;  //mass flow rate, kg/s
+
+D=0.12;   //diameter of pipe, m
+T1=363;   //pipe temperature,K
+T2=323;   //bulk temp. of fluid,K
+a=977;  //density, kg/m^3
+u=m/(a*3.14*(D/2)^2);; //average velocity,m/s
+Re=u*D/(4.07*10^-7);  //reynolds no.
+Uw=3.1*10^-4;        // wall side viscosity,N*s/m^2
+Ub=5.38*10^-4;   //bulk viscosity, N*s/m^2
+
+Pr=2.47;  //prandtl no.
+f=1/(1.82/2.303*log(Re)-1.64)^2;     // formula for friction factor for smooth pipes
+
+Nu=(f/8*Re*Pr)/(1.07+12.7*(f/8)^(0.5)*(Pr^(2/3)-1));   //formula for nusselt no.in fully developed flow in smooth pipes
+
+h=Nu*0.661/D    // convective heat transfer coefficient,W/(m^2)/K
+h1=8907;   //convective heat transfer coefficient,W/(m^2)/K
+
+//corrected friction factor = friction factor at bulk temp.*K where K=(7-u1/u2)/6 for wall temp.>bulk temp.
+
+f1=f*((7-Ub/Uw)/6);    // corrected friction factor
+F=0.0122;  //corrected friction factor
+
+printf("\t correlation friction factor. is : %.4f\n",F);
+printf("\t convection heat transfer coefficient is :%.0f W/(m^2)/K \n",h1);
+
+// end
\ No newline at end of file
-- 
cgit