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KLAS, R. POCHYLÝ, F. RUDOLF, P.
Original Title
Influence of low-specific speed pump modifications on stability of Y-Q curve
Type
conference paper
Language
English
Original Abstract
Contribution is focused on modification of low-specific speed pump impellers with respect to stability of their Y-Q curves (i.e. head curves). The design modifications are driven by analysis of the dissipated power. First, dissipated power is evaluated by CFD software in individual working parts of the pump and then its dependence on flow rate is investigated. Pressure fields within the pump are also carefully examined. Special attention is paid to impellers and configuration of the blade channels and recirculating channels. Results point to significant influence of the proper inflow to recirculating channels and also to role of the volute, which is more pronounced than in conventional impellers. All integral characteristics from CFD simulations are verified experimentally.
Keywords
low-specific speed pump, stability, CFD, recirculating channels
Authors
KLAS, R.; POCHYLÝ, F.; RUDOLF, P.
RIV year
2015
Released
6. 5. 2015
Publisher
EDP Sciences
ISBN
2100-014X
Periodical
EPJ Web of Conferences
Year of study
92
Number
1
State
French Republic
Pages from
Pages to
6
Pages count
URL
https://www.epj-conferences.org/articles/epjconf/abs/2015/11/epjconf_efm2014_02033/epjconf_efm2014_02033.html
Full text in the Digital Library
http://hdl.handle.net/11012/194728
BibTex
@inproceedings{BUT114854, author="Roman {Klas} and František {Pochylý} and Pavel {Rudolf}", title="Influence of low-specific speed pump modifications on stability of Y-Q curve", booktitle="EPJ Web of Conferences", year="2015", journal="EPJ Web of Conferences", volume="92", number="1", pages="1--6", publisher="EDP Sciences", doi="10.1051/epjconf/20159202033", issn="2100-014X", url="https://www.epj-conferences.org/articles/epjconf/abs/2015/11/epjconf_efm2014_02033/epjconf_efm2014_02033.html" }