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Diffstat (limited to '3733/CH4/EX4.2/Ex4_2.sce')
| -rw-r--r-- | 3733/CH4/EX4.2/Ex4_2.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/3733/CH4/EX4.2/Ex4_2.sce b/3733/CH4/EX4.2/Ex4_2.sce new file mode 100644 index 000000000..5edddf58c --- /dev/null +++ b/3733/CH4/EX4.2/Ex4_2.sce @@ -0,0 +1,20 @@ +//Example 4_2
+clc;funcprot(0);
+//Given data
+p=4.1;// kW
+n=360;// r.p.m
+h=1.8;// m
+H=6;// m
+// d_r=D/d
+d_r=5
+
+//Calculation
+N=n*(1/d_r)*sqrt(H/h);// r.p.m
+P=p*(d_r)^2*(H/h)^(3/2);// kW
+//Q/q=q_r
+q_r=(d_r)^2*sqrt(H/h);
+n_s=(n*sqrt(p))/h^(5/4);
+N_s=(N*sqrt(P))/(H)^(5/4);
+printf('\nN=%0.0f r.p.m\nP=%0.0f kW\nQ/q=%0.1f',N,P,q_r);
+printf('\nThe runner must be of propeller type');
+// The answer vary due to round off error
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