5_08 - Problem 5.8 Jet pump The device connected between...

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Problem 5.8 Jet pump The device connected between compartments A and B is a simplified version of a jet pump. A jet (or ejector) pump is a device which uses a small, very high-speed jet with relatively low volume flow rate to move fluid at much larger volume flow rates against a pressure differential p , as shown in the figure. The pump in the figure consists of a contoured inlet section leading to a pipe segment of constant area A 2 . A small jet draws fluid from compartment A and ejects it at high velocity V j and area A j at the entrance plane (1) of the constant-area pipe segment. Between (1) and (2), the jet (the "primary" stream) and the secondary fluid flow which is drawn in from compartment A via the contoured inlet section mix in a viscous, turbulent fashion and eventually, at station (2), emerge as an essentially uniform-velocity stream. The pump operates in steady state. To simplify the analysis, we make several physical assumptions that are not unreasonable. We assume that the flow is incompressible
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This note was uploaded on 02/27/2012 for the course MECHANICAL 2.25 taught by Professor Garethmckinley during the Fall '05 term at MIT.

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5_08 - Problem 5.8 Jet pump The device connected between...

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