diff options
Diffstat (limited to '3751/CH2/EX2.24/Ex2_24.sce')
| -rw-r--r-- | 3751/CH2/EX2.24/Ex2_24.sce | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/3751/CH2/EX2.24/Ex2_24.sce b/3751/CH2/EX2.24/Ex2_24.sce new file mode 100644 index 000000000..c93728a82 --- /dev/null +++ b/3751/CH2/EX2.24/Ex2_24.sce @@ -0,0 +1,38 @@ +//Fluid system - By - Shiv Kumar
+//Chapter 2 - Impact of Jet
+//Example 2.24
+ clc
+ clear
+
+//Given Data:-
+ Do=1.5; //Diameter of rotor at inlet of vane, m
+ Di=1; //Diameter of rotor at outlet of vane, m
+ N=400; //Speed of the rotor, rpm
+ Vi=15; //m/s
+ alpha_i=12; //Nozzle angle at inlet, degrees
+ Vo=5; //m/s
+ VFo=Vo;
+//Data Used:-
+ g=9.81; //Acceleration due to gravity, m/s^2
+
+//Computations:-
+ ui=%pi*Do*N/60; //m/s
+ uo=%pi*Di*N/60; //m/s
+ Vfi=Vi*sind(alpha_i); //m/s
+ Vfo=Vo; //m/s
+ Vwi=Vi*cosd(alpha_i); //m/s
+ //(a)
+ Vrwi=ui-Vwi; //m/s
+ beta_i=180-atand(Vfi/Vrwi); //Blade angle at inlet, degrees
+ beta_o=atand(Vfo/uo); //Blade angle at outlet, degrees
+ //(b)
+ Vro=uo/cosd(beta_o); //m/s
+ //(c)
+ W=Vwi*ui/g; //N-m/N
+
+//Results:-
+ printf("(a)Blade angle at entry and exit are: \n\t")
+ printf("beta_i=%.2f degrees \t beta_o=%.2f degrees \n\n", beta_i,beta_o) //The answer vary due to round off error
+ printf("(b)Velocity of water relative to Vanes at exit, Vro=%.2f m/s \n", Vro) //The answer vary due to round off error
+ printf("(c)Work done per second per unit weight of water strikes on Vane per second=%.2f N-m/N", W) //The answer vary due to round off error
+
|