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JSIR Vol.68(03) [March 2009] >

Title: Effect of impeller-diffuser radial gap ratio in a centrifugal pump
Authors: Ozturk, Adnan
Aydin, Kadir
Sahin, Besir
Keywords: CFD
Centrifugal pump
Impeller-diffuser interaction
Numerical simulation
Issue Date: Mar-2009
Publisher: CSIR
Abstract: In this study, effects of flow behavior in a non-traditional centrifugal pump, whose diffuser was subjected to different radial gaps, were investigated numerically using multi-purpose FLUENT code. Flow was assumed to be three dimensional, viscous and incompressible. RNG with standard near-wall functions was used. Centrifugal pump had a five backward curved-bladed impeller running at 890 rpm and a nine vaned diffuser. Investigations for three different radial gaps (10%, 15%, 20%) have been carried out for 15 different volume flow rates. For present pump, 20% radial gap is found most suitable for pressure fluctuations.
Page(s): 203-213
ISSN: 0022-4456
Source:JSIR Vol.68(03) [March 2009]

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