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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /2519/CH19/EX19.5 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '2519/CH19/EX19.5')
| -rwxr-xr-x | 2519/CH19/EX19.5/Ex19_5.sce | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/2519/CH19/EX19.5/Ex19_5.sce b/2519/CH19/EX19.5/Ex19_5.sce new file mode 100755 index 000000000..2ca474bc1 --- /dev/null +++ b/2519/CH19/EX19.5/Ex19_5.sce @@ -0,0 +1,29 @@ +clc
+clear
+//Initialization of variables
+chord=40 //ft
+v=1200 //mph
+t1=80 //F
+t2=200 //F
+mu=0.0447 //lbm/ft hr
+rho=5280 //lbm/ft^3
+cp=0.2404 //Btu/lbm F
+k=0.0152 //Btu/hr ft F
+J=778
+gc=32.17 //ft/s^2
+mu2=0.0514 //lbm/ft hr
+k2=0.0179 //Btu/hr ft F
+cp2=0.2414 //Btu/lbm F
+//calculations
+Re=rho*v*chord*0.0735/mu
+r=(mu*cp/k)^(1/3)
+tav=t1+ r*v^2 *rho^2 /(2*gc*J*cp*3600^2)
+ts=t1+ 0.5*(t2-t1)+ 0.22*(tav-t1)
+Re2=v*rho*chord*0.0610/mu2
+Pr2=cp2*mu2/k2
+hc=cp2*v*rho*0.0610 *0.037*Re2^(-0.2) *Pr2^(-0.667)
+Q2=hc*(t2-tav)
+//results
+printf("Temperature of wing surface = %.1f F",tav)
+printf("\n Heat transfer convective = %d Btu/hr ft^2",Q2)
+disp("The answers are a bit different due to rounding off error in textbook")
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