About: CFD analysis of unsteady cavitation phenomena in multistage pump with inducer

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The paper presents the numerical simulation of the cavitating flow phenomena in the suction part of a radial-flow multistage water pump with an inducer and a high rotational speed. Besides the cavitation inception and the drop of the pump total head the CFD analysis studies the possibility of the cavitation surge and quantifies the risk of cavitation erosion for different flow conditions. ANSYS CFX was used to solve the URANS equations coupled with the Rayleigh-Plesset Model and the SST-SAS turbulence model. The erosion risk is estimated from the energy dissipated during the collapses of individual bubbles. The cavitation instability in the backflow vortices has been detected at 60% of the optimal flow coefficient close to the NPSHr value. The paper presents the numerical simulation of the cavitating flow phenomena in the suction part of a radial-flow multistage water pump with an inducer and a high rotational speed. Besides the cavitation inception and the drop of the pump total head the CFD analysis studies the possibility of the cavitation surge and quantifies the risk of cavitation erosion for different flow conditions. ANSYS CFX was used to solve the URANS equations coupled with the Rayleigh-Plesset Model and the SST-SAS turbulence model. The erosion risk is estimated from the energy dissipated during the collapses of individual bubbles. The cavitation instability in the backflow vortices has been detected at 60% of the optimal flow coefficient close to the NPSHr value. (en)
Title	CFD analysis of unsteady cavitation phenomena in multistage pump with inducer CFD analysis of unsteady cavitation phenomena in multistage pump with inducer (en)
skos:prefLabel	CFD analysis of unsteady cavitation phenomena in multistage pump with inducer CFD analysis of unsteady cavitation phenomena in multistage pump with inducer (en)
skos:notation	RIV/61388998:_____/12:00388638!RIV13-AV0-61388998
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GAP101/10/1428), Z(AV0Z20760514)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Zima, Patrik
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav termomechaniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	126613
http://linked.open...ai/riv/idVysledku	RIV/61388998:_____/12:00388638
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	cavitating flow; CFD analysis; erosion risk (en)
http://linked.open.../riv/klicoveSlovo	CFD analysis cavitating flow erosion risk
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[5FA27DB0A8DE]
http://linked.open...i/riv/nazevZdroje	IOP Conference Series
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Collapse and fission mechanisms of ultrasonically excited cavitation bubbles near a solid boundary in Newtonian liquid
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	15
http://linked.open...iv/tvurceVysledku	Zima, Patrik Sedlář, M. Bajorek, M. Krátký, T.
http://linked.open...n/vavai/riv/zamer	Complex dynamical systems in thermodynamics, fluid and solid mechanics
issn	1755-1315
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/1755-1315/15/6/062024

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