EROSIVE POTENTIAL OF TRAVELING BUBBLE CAVITATION IN A WATER PUMP ? CFD & EXPERIMENT

Result code in IS VaVaI

RIV/61388998:_____/09:00332865 - isvavai.cz

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

EROSIVE POTENTIAL OF TRAVELING BUBBLE CAVITATION IN A WATER PUMP ? CFD & EXPERIMENT

Original language description

A model assessing erosive potential of cavitation bubbles for 3D steady-state pump flow in the traveling cavitation mode is proposed. The 3D Navier-Stokes code for turbulent pump flow is coupled with the Rayleigh-Plesset equation by means of two-way coupling. The energy dissipated between two successive bubble rebounds is estimated to assess the erosive potential. The model is validated for a 2D hydrofoil in the cavitation tunnel and then employed for a 3D mixed-flow water pump impeller. The numerical results indicate the dominant effect of the first collapse and are in good agreement with the experiment.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

BK - Liquid mechanics

OECD FORD branch

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Project

GA101/07/1612: The effect of physical properties of water on bubble nucleation and cavitation damage in pumps

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Experimental Fluid Mechanics 2009

ISBN

978-80-7372-538-9

ISSN

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e-ISSN

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Number of pages

11

Pages from-to

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Publisher name

Technical University of Liberec

Place of publication

Liberec

Event location

Liberec

Event date

Nov 25, 2009

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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