The efficiency of the viscous-shear pump of Fig. P8.29 is given by [eta=6 q frac{(1-2 q)}{(4-6 q)}]
Question:
The efficiency of the viscous-shear pump of Fig. P8.29 is given by
\[\eta=6 q \frac{(1-2 q)}{(4-6 q)}\]
where \(q=Q / a b R \omega\) is a dimensionless flow rate, \(Q\) is the flow rate at pressure differential \(\Delta p\), and \(b\) is the depth normal to the diagram. Plot the efficiency versus dimensionless flow rate, and find the flow rate for maximum efficiency. Explain why the efficiency peaks and why it is zero at certain values of \(q\).
Data From Fig. P8.29
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Related Book For
Fox And McDonald's Introduction To Fluid Mechanics
ISBN: 9781118912652
9th Edition
Authors: Philip J. Pritchard, John W. Mitchell
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