Publication detail

Rotational Flow in Centrifugal Pump Meridian Using Curvilinear Coordinates

POCHYLÝ, F. STEJSKAL, J.

Original Title

Rotational Flow in Centrifugal Pump Meridian Using Curvilinear Coordinates

Type

journal article in Web of Science

Language

English

Original Abstract

A new model for calculation of the velocity field in a pump meridian is presented in this article. It is a parameterised rotational flow model providing the pump designer with an option to simulate various flow conditions at the blade leading edge using a single parameter, which leads to different blade designs. Despite being rotational, this flow model does not allow for creation of helical swirl structures, a feature that is usually sought to be suppressed in a pump impeller. A condition for a flow pattern suitable for a pump hydraulic design is derived using curvilinear coordinates. The variation of the meridional velocity for different choices of the parameter is demonstrated and the meridional flow field is compared against the turbulent flow. The resulting velocity field is easy to obtain and provides a unified approach to determine the distribution of the blade inlet angles along the leading edge for a range of design requirements.

Keywords

Centrifugal pumps, Rotational flow, Flow (Dynamics), Pumps, Blades, Design, Pump impellers, Turbulence

Authors

POCHYLÝ, F.; STEJSKAL, J.

Released

22. 4. 2016

Publisher

Asme J. Fluids Eng.

ISBN

0098-2202

Periodical

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME

Year of study

138

Number

8

State

United States of America

Pages from

1765

Pages to

1770

Pages count

6

URL

http://fluidsengineering.asmedigitalcollection.asme.org/acceptedmanuscripts.aspx

BibTex

@article{BUT122165,
  author="František {Pochylý} and Jiří {Stejskal}",
  title="Rotational Flow in Centrifugal Pump Meridian Using Curvilinear Coordinates",
  journal="JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME",
  year="2016",
  volume="138",
  number="8",
  pages="1765--1770",
  doi="10.1115/1.4032756",
  issn="0098-2202",
  url="http://fluidsengineering.asmedigitalcollection.asme.org/acceptedmanuscripts.aspx"
}