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Question 4 A jet of water having a velocity of (50 m/s) impinges a series of a curved vanes at an angle (15°) to the line of motion of the vane. Angles of vanes at inlet and exit are ($\theta_1 = 30^\circ$ and $\theta_2 = 15^\circ$). Assume frictionless conditions, Find the following from triangles velocities analysis at inlet and exit of the vane. a- The velocity of the vane (u) to avoid shock at entry. b- The absolute velocity at exit ($V_2$). c- The power obtained in (h.p) from 10 series vanes if diameter of jet ($d_{jet} = 0.2$ m).

          Question 4
A jet of water having a velocity of (50 m/s) impinges a series of a curved vanes at an angle (15°) to the line of motion of the vane. Angles of vanes at inlet and exit are ($\theta_1 = 30^\circ$ and $\theta_2 = 15^\circ$). Assume frictionless conditions, Find the following from triangles velocities analysis at inlet and exit of the vane.
a- The velocity of the vane (u) to avoid shock at entry.
b- The absolute velocity at exit ($V_2$).
c- The power obtained in (h.p) from 10 series vanes if diameter of jet ($d_{jet} = 0.2$ m).

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Question 4
A jet of water having a velocity of (50 m/s) impinges a series of a curved vanes at an angle (15°) to the line of motion of the vane. Angles of vanes at inlet and exit are (θ1 = 30^∘ and θ2 = 15^∘). Assume frictionless conditions, Find the following from triangles velocities analysis at inlet and exit of the vane.
a- The velocity of the vane (u) to avoid shock at entry.
b- The absolute velocity at exit (V2).
c- The power obtained in (h.p) from 10 series vanes if diameter of jet (djet = 0.2 m).

Added by Guillermo A.

Introduction to Fluid Mechanics

Philip J. Pritchard, Robert W. Fox 8th Edition

Chapter 4

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Solved by Expert Dharmendra Maheshwari

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This is because shock waves occur when the velocity of the vane is less than the velocity of the jet. b) To find the absolute velocity at the exit (V), we can use the principle of conservation of momentum. The momentum of the jet at the inlet is equal to the Show more…

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Text: Please answer this question in clear handwriting. Question 4: A jet of water having a velocity of 50 m/s impinges on a series of curved vanes at an angle of 15Â° to the line of motion of the vane. The angles of the vanes at the inlet and exit are Î¸ = 30Â° and Ï† = 15Â°. Assuming frictionless conditions, find the following from the velocity analysis of the triangles at the inlet and exit of the vane: a) The velocity of the vane (u) to avoid shock at entry. b) The absolute velocity at the exit (V). c) The power obtained in horsepower (h.p) from a series of 10 vanes if the diameter of the jet (d_jet) is 0.2 m.

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