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Draw the triangles of velocities at inlet and outlet

A jet of water having a velocity of 35 m/s impinges on a series of vanes moving with a velocity of 20 m/s. The jet makes an angle of 300 to the direction of motion of vanes when entering and leaves at an angle of 1200. Draw the triangles of velocities at inlet and outlet and find

i) The angles of vanes tips so that water enters and leaves without shock.

ii) The work done per unit weight of water entering the vanes and

iii) The efficiency.

Mumbai University > Civil Engineering > Sem 5 > Applied Hydraulics 1

Marks: 10M

Year: Dec 2014, May 2016

1 Answer
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Given:

velocity of jet v1 = 35 m/s

Velocity of vane u1=u2 = 20 m/s

Angle of jet at inletα=300

Angle made by the jet at outlet with the direction of motion of vanes = 1200

Angle B=18001200=600

  1. Angle …

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