Hydrodynamic Design System for Pumps Based on 3-D CAD, CFD, and Inverse Design Method

[+] Author and Article Information
Akira Goto

Ebara Research Co., Ltd., Fujisawa-shi, Japan e-mail: goto05296@erc.ebara.co.jp

Motohiko Nohmi, Takaki Sakurai, Yoshiyasu Sogawa

EBARA Corporation, Tokyo, Japan

J. Fluids Eng 124(2), 329-335 (May 28, 2002) (7 pages) doi:10.1115/1.1471362 History: Received August 06, 2001; Revised January 18, 2002; Online May 28, 2002
Copyright © 2002 by ASME
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Nohmi, M., and Goto, A., 1998, “Experimental and Computational Study of the Flow in a Vaned Return Channel of a Low Specific Speed Pump,” ASME Fluids 98, FEDSM98-4857.


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Definition of blade loading parameter
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Velocity vectors on blade suction surface. (a) Conventional design; (b) inverse design
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Velocity contours at impeller trailing edge. (a) Conventional design; (b) inverse design
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Conventional design stage. (a) CFD prediction; (b) oil-film flow pattern
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Inverse design stage. (a) CFD prediction; (b) oil-film flow pattern
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Diffuser pump series (Ns800:specific speed of 800 [m, rpm, m3 /min]). (a) Ns280; (b) Ns800; (c) Ns1350
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Vaned return channel of multi-stage pump
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2-D information of vaned return channel
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3-D surface model on vaned return channel. (a) Generating surface patch; (b) final surface patch
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3-D CAD modeling of volute casing. (a) 2-D information; (b) 3-D surface model
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Automatic grid generation (after refinement)
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Vaned return channel and measurement locations
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Flow pattern in diffuser part. (a) 3-D flow visualization; (b) particle path lines by CFD
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Total pressure change in vaned return channel



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