Publication detail

Numerical and experimental investigation of swirling flow in a conical diffuser

ŠTEFAN, D. ZUBÍK, P. HUDEC, M. RUDOLF, P.

Original Title

Numerical and experimental investigation of swirling flow in a conical diffuser

Type

conference paper

Language

English

Original Abstract

The decelerated swirling flow often breaks down into helical structure which is unstable and causes unsteady velocity and pressure fields. The numerical and experimental investigation of this flow pattern is carried out on the experimental apparatus consisting of the swirl generator (producing a strong swirling flow) and the transparent conical diffuser (where the helical structure can be observed). The open source CFD software OpenFOAM employing realizable k-epsilon turbulence model is used for the numerical simulations. The experimental measurements are focused on LDA measurements of velocity profiles in the diffuser cross-sections. Agreements between numerical end experimental results are discussed.

Keywords

swirling flow, cavitation, LDA, OpenFOAM

Authors

ŠTEFAN, D.; ZUBÍK, P.; HUDEC, M.; RUDOLF, P.

RIV year

2015

Released

6. 5. 2015

Publisher

EPJ Web of Conferences

ISBN

2100-014X

Periodical

EPJ Web of Conferences

Year of study

2015

Number

92

State

French Republic

Pages from

1

Pages to

5

Pages count

5

URL

http://dx.doi.org/10.1051/epjconf/20159202085

Full text in the Digital Library

http://hdl.handle.net/11012/196354

BibTex

@inproceedings{BUT114433,
  author="David {Štefan} and Pavel {Zubík} and Martin {Hudec} and Pavel {Rudolf}",
  title="Numerical and experimental investigation of swirling flow in a conical diffuser",
  booktitle="EFM14 - Experimental Fluid Mechanics 2014",
  year="2015",
  journal="EPJ Web of Conferences",
  volume="2015",
  number="92",
  pages="1--5",
  publisher="EPJ Web of Conferences",
  doi="10.1051/epjconf/20159202085",
  issn="2100-014X",
  url="http://dx.doi.org/10.1051/epjconf/20159202085"
}