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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /689/CH15/EX15.5/5.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '689/CH15/EX15.5/5.sce')
| -rw-r--r-- | 689/CH15/EX15.5/5.sce | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/689/CH15/EX15.5/5.sce b/689/CH15/EX15.5/5.sce new file mode 100644 index 000000000..3c7ad9a4b --- /dev/null +++ b/689/CH15/EX15.5/5.sce @@ -0,0 +1,28 @@ +clc; funcprot(0);
+//Example 15.5 Thrust of a constant speed propeller
+// Initialisation of variables
+V = 125*1.467; // Velocity in ft/sec
+n = 1800/60; // Rotaion per second
+D = 9.5; // Diameter in ft
+P = 600*550;
+rho = 0.002378;
+
+// Calculations
+//For Beta = 23 degree
+Cp = P/(rho*n^3*D^5);
+ThrustCoeff = rho*n^2*D^4;
+VeloCoeff = n*60*D/88;
+5
+VBynD = linspace(0.5,0,6);
+Ct = [0.09 0.101 0.112 0.122 0.132 0.142]; // From figure 15.4 for corrospondiong values of V/nD at Cp = 0.066
+T = Ct*ThrustCoeff;
+V = VBynD*VeloCoeff;
+
+Result = zeros(6,4);
+Result(:,1) = VBynD';
+Result(:,2) = Ct';
+Result(:,3) = T';
+Result(:,4) = V';
+//Results
+
+disp(Result,"!! V/nD Ct T V(mph) !!") ;
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