Applying dimensional analysis to centrifugal and axial pumps

2 Applying dimensional analysis to centrifugal and axial pumps 

We shall make the further assumption that gH and Po are each dependent on (Q, N, D, V). 

Applying Rayleigh s method of dimensional analysis to the pump head, we write our test equation as  

The index, d, emerges unequivocally as zero, while the indices, b and c, are expressible in terms of a, which may take any value  

Substituting back into equation (17.1) gives gH = const X 

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