Detail publikačního výsledku

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

KLAS, R.; POCHYLÝ, F.; RUDOLF, P.

Originální název

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

Anglický název

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

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

low-specific speed pump, stability, CFD, recirculating channels

Klíčová slova v angličtině

low-specific speed pump, stability, CFD, recirculating channels

Autoři

KLAS, R.; POCHYLÝ, F.; RUDOLF, P.

Rok RIV

2016

Vydáno

06.05.2015

Nakladatel

EDP Sciences

Kniha

EPJ Web of Conferences

ISSN

2100-014X

Periodikum

EPJ Web of Conferences

Svazek

92

Číslo

1

Stát

Francouzská republika

Strany od

1

Strany do

6

Strany počet

6

URL

https://www.epj-conferences.org/articles/epjconf/abs/2015/11/epjconf_efm2014_02033/epjconf_efm2014_02033.html

Plný text v Digitální knihovně

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"
}

Dokumenty

epjconf_efm2014_02033