2 files changed, 21 insertions, 0 deletions
diff --git a/629/CH6/EX6.3/ex6_3.txt b/629/CH6/EX6.3/ex6_3.txt
new file mode 100644
index 000000000..520c8f094
--- /dev/null
+++ b/629/CH6/EX6.3/ex6_3.txt
@@ -0,0 +1,5 @@
+ 
+ The air speed at the exit of the nozzle = 77.9 m/s.
+
+
+ The force on the flange = 9.90 N.
+\ No newline at end of file
diff --git a/629/CH6/EX6.3/example6_3.sce b/629/CH6/EX6.3/example6_3.sce
new file mode 100644
index 000000000..1d9d2d663
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+++ b/629/CH6/EX6.3/example6_3.sce
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+clear
+clc
+//Example 6.3 FORCE ON A NOZZLE
+d1=0.06; //[m]
+A1=%pi*d1^2/4 //area[m^2]
+d2=0.01; //[m]
+rho=1.22; //density[kg/m^3]
+p1=3.7*1000; //[Pa]
+//Bernoulli equation, p1+rho*v1^2/2=rho*v2^2/2
+v2=sqrt(2*p1/(rho*(1-(d2/d1)^4))) //Exit velocity[m/s]
+printf("\n The air speed at the exit of the nozzle = %.1f m/s.\n\n",v2)
+v1=v2*(d2/d1)^2 //Inlet velocity[m/s]
+m=rho*A1*v1 //mass flow rate[kg/s]
+//Force on flange
+F=m*(v2-v1)-p1*A1 //[N]
+printf("\n The force on the flange = %.2f N.\n",-F)
+\ No newline at end of file