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Impact of jet
1 OBJECTIVE
To determine the impact force on a surface produced by the change in momentum a fluid flow.
2 THEORY
The high velocity jet produces mechanical work by momentum change of the jets and impulse as the jet directed to the vanes or turbines. ... Water jet is produced and directed to the vane in the form of target plate. ... Use the valve to control the jet so that static equilibrium is reached with pan datum line aligned with the level gauge. ...
Similarly, when a jet of water push the weight pan back to its initial position, the datum line may be higher (or lower) than the level gauge. ...
Because of the small distance between them, the velocity of the jet as it leaves the nozzle (v1, calculated by using V/tA) will be higher than the velocity at the vane (v2). ...
∴
∵
∴The slop of the graph is
(d) If the hemispherical cup is placed in opposite direction to the jet, i. ... convex surface facing the jet, If a hemispherical cup deflector is used, the angle ɑin equation (1), , will become 0°. ... The impact force is independent of the shape of the surfaces.
Approximate Word count = 1513
Approximate Pages = 6.1
(250 words per page double spaced)
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