Numerical simulation of pump-intake vortices
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F15%3APU114345" target="_blank" >RIV/00216305:26210/15:PU114345 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/epjconf/20159202077" target="_blank" >http://dx.doi.org/10.1051/epjconf/20159202077</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/epjconf/20159202077" target="_blank" >10.1051/epjconf/20159202077</a>
Alternative languages
Result language
angličtina
Original language name
Numerical simulation of pump-intake vortices
Original language description
Pump pre-swirl or uneven flow distribution in front of the pump can induce pump-intake vortices. These phenomena result in blockage of the impeller suction space, deterioration of efficiency, drop of head curve and earlier onset of cavitation. Real problematic case, where head curve drop was documented, is simulated using commercial CFD software. Computational simulation was carried out for three flow rates, which correspond to three operating regimes of the vertical pump. The domain consists of the pump sump, pump itself excluding the impeller and the delivery pipe. One-phase approach is applied, because the vortex cores were not filled with air during observation of the real pump operation. Numerical simulation identified two surface vortices and one bottom vortex. Their position and strength depend on the pump flow rate. Paper presents detail analysis of the flow field on the pump intake, discusses influence of the vortices on pump operation and suggests possible actions that should be taken to suppress the intake vortices.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20704 - Energy and fuels
Result continuities
Project
<a href="/en/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
EPJ Web of Conferences
ISBN
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ISSN
2100-014X
e-ISSN
—
Number of pages
6
Pages from-to
1-6
Publisher name
EPJ Web of Conferences
Place of publication
Neuveden
Event location
Český Krumlov
Event date
Nov 18, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000358249900079