Publication detail

Influence of low-specific speed pump modifications on stability of Y-Q curve

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

1

Pages to

6

Pages count

6

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"
}