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+//Fluid system - By - Shiv Kumar

+//Chapter 2 - Impact of Jet

+//Example 2.17

+      clc

+     clear

+//Given Data:-

+        d=60;     //Diameter of Jet, mm

+        Vi=22;       //Absolute Velocity of Jet at Inlet, m/s

+        u=11;        //Velocity of vane, m/s

+        ui=u;

+        uo=u;

+        alpha_i=0;   //degrees

+        alpha_l=65;  //degrees

+        alpha_o=180-alpha_l;     //degrees

+        

+//Data Used:-

+     rho=1000;     //Density of water, kg/m^3

+

+//Computations:-

+             

+       d=d/1000;      //m

+       a=(%pi/4)*d^2;      //cross-sectional area of Jet, m^2

+       Vwi=Vi;      //m/s

+       Vri=Vi-ui;    //m/s

+       Vro=Vri;

+       beta_o=alpha_o-asind(uo*sind(alpha_l)/Vro);       //degrees

+       Vwo=uo-Vro*cosd(beta_o);     //m/s

+   //(a)The Force exerted by Jet on Vane in direction of motion, Fx

+       Fx=rho*a*Vri*(Vwi-Vwo);      //N

+   //(b)Power developed by vane,

+       P=Fx*u/1000;         //kW

+   //(c)Efficiency of Vane,

+       eta=2*Fx*u/(rho*a*Vi^3)*100;        //in Percentage

+       

+//Results:-

+     printf("(a)The Force exerted by Jet on Vane in direction of motion, Fx=%.2f  N  \n", Fx)      //The answer vary due to round off error

+     printf("(b)Power developed by vane=%.3f kW  \n", P)      //The answer vary due to round off error

+     printf("(c)Efficiency of vane, eta=%.2f percent  \n", eta)      //The answer vary due to round off error