Although many scaling laws are available for the assessment of prototype performance from tests on small-scale models, the discrepancies between them are wide and varied.This paper considers the effect of individual components and shows that it is unlikely that any single law can be applied to pumps as well as turbines, to pumps of different specific speeds, or to pumps of the same specific speed but designed to differing philosophies.It is proposed that more information pertaining to scaling laws can be acquired if pumps running at different speeds and in different fluids are studied.

M. Sutton

Papers

Paper 10: Pump Scale Laws as Affected by Individual Component Losses