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Radial Flow pumps only - Affinity laws?

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Bygeorge

Bygeorge

Mechanical
Mar 4, 2004
5
The affinity laws for speed change work for all rotodynamic pumps (radial, axial and mixed flow impellers) but for impeller diameter change the laws only apply for radial flow impellers - can anyone tell me why this is the case?
 
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