An overview of methods for calculating the head of a rotodynamic impeller and their practical significance

Abstract

This paper explains why Euler's equation and the airfoil theory, while analytically correct, sometimes produce disappointing results. It also emphasizes the merits of a recently developed approach and demonstrates its usefulness in solving problems encountered in practice. The subject matter relates, directly, only to rotodynamic pumps. However, with proper modifications, it can be easily expanded to other fluids machines.

Keywords

fluids machines rotodynamic impeller axial-flow impeller axial-flow pump centrifugal pump regenerative pump blade blade geometry impeller blade impeller cutdown impeller design guide vanes head predictions diffusor pump performance performance curve blower centrifugal compressors fan flow meter turbine pelton wheel wind motor wing

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