diff options
Diffstat (limited to '629/CH11/EX11.6')
| -rw-r--r-- | 629/CH11/EX11.6/ex11_6.txt | 5 | ||||
| -rw-r--r-- | 629/CH11/EX11.6/example11_6.sce | 19 |
2 files changed, 24 insertions, 0 deletions
diff --git a/629/CH11/EX11.6/ex11_6.txt b/629/CH11/EX11.6/ex11_6.txt new file mode 100644 index 000000000..1d9c72be8 --- /dev/null +++ b/629/CH11/EX11.6/ex11_6.txt @@ -0,0 +1,5 @@ +
+The lift force on the ball = 0.011 N and the direction of lift is downward.
+
+The drag force on the ball = 0.0271 N.
+
\ No newline at end of file diff --git a/629/CH11/EX11.6/example11_6.sce b/629/CH11/EX11.6/example11_6.sce new file mode 100644 index 000000000..260346ef6 --- /dev/null +++ b/629/CH11/EX11.6/example11_6.sce @@ -0,0 +1,19 @@ +clear
+clc
+//Example 11.6 LIFT ON A ROTATING SPHERE
+rho=1.2; //density[Kg/m^3]
+d=0.03; //diameter [m]
+r=d/2; //radius [m]
+A=%pi*d^2/4 //area[m^2]
+Vo=10; //velocity [m/s]
+w=100*2*%pi //angular speed [rad/s]
+p=w*r/Vo //rotational parameter
+//From fig.11.17
+CL=0.26; //lift coefficient
+CD=0.64; //drag coefficient
+//Lift force
+FL=(rho*Vo^2*CL*A)/2 //[N]
+printf("\nThe lift force on the ball = %.3f N and the direction of lift is downward.\n",FL)
+//Drag force
+FD=(rho*Vo^2*CD*A)/2 //[N]
+printf("\nThe drag force on the ball = %.4f N.\n",FD)
\ No newline at end of file |