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Statements

Subject Item
n2:RIV%2F61388998%3A_____%2F12%3A00388638%21RIV13-AV0-61388998
rdf:type
skos:Concept n4:Vysledek
dcterms: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.
dcterms:title
CFD analysis of unsteady cavitation phenomena in multistage pump with inducer CFD analysis of unsteady cavitation phenomena in multistage pump with inducer
skos:prefLabel
CFD analysis of unsteady cavitation phenomena in multistage pump with inducer CFD analysis of unsteady cavitation phenomena in multistage pump with inducer
skos:notation
RIV/61388998:_____/12:00388638!RIV13-AV0-61388998
n4:predkladatel
n5:ico%3A61388998
n3:aktivita
n16:Z n16:P
n3:aktivity
P(GAP101/10/1428), Z(AV0Z20760514)
n3:cisloPeriodika
6
n3:dodaniDat
n9:2013
n3:domaciTvurceVysledku
n14:1168711
n3:druhVysledku
n18:J
n3:duvernostUdaju
n11:S
n3:entitaPredkladatele
n6:predkladatel
n3:idSjednocenehoVysledku
126613
n3:idVysledku
RIV/61388998:_____/12:00388638
n3:jazykVysledku
n20:eng
n3:klicovaSlova
cavitating flow; CFD analysis; erosion risk
n3:klicoveSlovo
n17:cavitating%20flow n17:CFD%20analysis n17:erosion%20risk
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[5FA27DB0A8DE]
n3:nazevZdroje
IOP Conference Series
n3:obor
n19:BK
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
4
n3:projekt
n8:GAP101%2F10%2F1428
n3:rokUplatneniVysledku
n9:2012
n3:svazekPeriodika
15
n3:tvurceVysledku
Zima, Patrik Krátký, T. Sedlář, M. Bajorek, M.
n3:zamer
n15:AV0Z20760514
s:issn
1755-1315
s:numberOfPages
8
n10:doi
10.1088/1755-1315/15/6/062024