Fluid Dynamics and Vane Mechanics

Dr. Surya explains how to solve a problem involving a jet of water impacting both stationary and moving vanes. The tutorial covers calculating the forces exerted by the water jet, determining the resultant force and its direction, and computing the work done and power developed. The process involves using trigonometric functions and understanding the dynamics of fluid flow on surfaces.

What is the initial velocity of the water jet striking the stationary vane?

• 100 m/s

• 50 m/s

• 25 m/s

• 75 m/s

What is the outlet angle of the water jet after striking the stationary vane?

• 35 degrees

• 0 degrees

• 15 degrees

• 25 degrees

How is the force in the x-direction calculated for the stationary vane?

• Mass per second times (final velocity - initial velocity)

• Mass per second times final velocity

• Mass per second times initial velocity

• Mass per second times (initial velocity - final velocity)

Why is a negative sign used in the calculation of the final velocity in the x-direction for the stationary vane?

• Because the water moves in the same direction

• Because the water changes color

• Because the water moves in the opposite direction

• Because the water stops moving

What is the resultant force on the stationary vane?

• 9.952 N

• 2.154 N

• 12.5 N

• 9.716 N

What is the vane velocity given in the moving vane problem?

• 40 m/s

• 30 m/s

• 20 m/s

• 10 m/s

How is the initial relative velocity calculated for the moving vane?

• V + u

• V - u

• u - V

• V * u

What is the resultant force on the moving vane?

• 5.9 N

• 1.292 N

• 5.917 N

• 6.5 N

What is the formula for work done on the moving vane?

• FX * V

• FX * u

• FX / u

• FX + u

What is the power developed by the moving vane?

• 11.6 kW

• 116 kW

• 1.16 kW

• 0.116 kW