Performance of a mixed flow pump with varying tip clearance .2.

Soundranayagam, S and Saha, TK (1996) Performance of a mixed flow pump with varying tip clearance .2. In: Proceedings of the Institution of Mechanical Engineers - Part A: Journal of Power and Energy, 210 (4). pp. 319-327.

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Abstract

Measurements in a mixed flow pump of non-dimensional specific speed k = 1.89[N-S = 100 r/min (metric)] are analysed to give loss distribution and local hydraulic efficiencies at different flowrates and values of tip clearance. Fairly close agreement is obtained between the relative flow angles leaving the blading as predicted by simple deviation and slip models and derived from the measurements. The head developed is broken up into two parts: that contributed by Coriolis action and that associated with blade circulation. It is suggested that lift coefficients based on blade circulation are of limited value in selecting blade profiles. The variation of pump efficiency with tip clearance is greater than that reported for centrifugal pumps.

Item Type:	Journal Article
Publication:	Proceedings of the Institution of Mechanical Engineers - Part A: Journal of Power and Energy
Publisher:	Professional Engineering Publishing
Additional Information:	Copyright of this article belongs to Professional Engineering Publishing.
Keywords:	mixed flow pump;tip clearance;loss coefficients;efficiency; scale effects
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	09 May 2011 10:58
Last Modified:	09 May 2011 11:11
URI:	http://eprints.iisc.ac.in/id/eprint/37461

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