Publication result detail

Turbulence Models for Simulation of the Flow in a Rotor-Stator Cavity

ZEMANOVÁ, L.; RUDOLF, P.

Original Title

Turbulence Models for Simulation of the Flow in a Rotor-Stator Cavity

English Title

Turbulence Models for Simulation of the Flow in a Rotor-Stator Cavity

Type

Paper in proceedings (conference paper)

Original Abstract

Modelling of the flow in the cavities between a rotor and a stator is a task of great engineering interest. Correctly evaluated pressure and velocity field enables calculation of the disk losses and therefore assessment of efficiency. It is also crucial for determination of axial thrust and thus design of the bearings. The paper demonstrates abilities of various turbulence models to describe the flow in a narrow gap between rotating and stationary disks. Numerical simulations were performed in order to find out the ability of particular models to capture unstable structures appearing during specific operating conditions as well as to calculate the velocity profiles precisely. Large Eddy Simulation (LES), Scale Adaptive Simulation (SAS), Detached Eddy Simulation (DES), Reynolds stress model (RSM) and SST k-ω model were used. Obtained results were also compared with experimental measurements.

English abstract

Modelling of the flow in the cavities between a rotor and a stator is a task of great engineering interest. Correctly evaluated pressure and velocity field enables calculation of the disk losses and therefore assessment of efficiency. It is also crucial for determination of axial thrust and thus design of the bearings. The paper demonstrates abilities of various turbulence models to describe the flow in a narrow gap between rotating and stationary disks. Numerical simulations were performed in order to find out the ability of particular models to capture unstable structures appearing during specific operating conditions as well as to calculate the velocity profiles precisely. Large Eddy Simulation (LES), Scale Adaptive Simulation (SAS), Detached Eddy Simulation (DES), Reynolds stress model (RSM) and SST k-ω model were used. Obtained results were also compared with experimental measurements.

Keywords

Rotor-Stator Cavity, Instability, CFD

Key words in English

Rotor-Stator Cavity, Instability, CFD

Authors

ZEMANOVÁ, L.; RUDOLF, P.

RIV year

2020

Released

28.06.2019

Publisher

EDP Sciences

Location

Studentská 2, 461 17 Liberec 1, Czech Republic

Book

Proceedings of the International conference Experimental Fluid Mechanics 2018

ISBN

2100-014X

Periodical

EPJ Web of Conferences

Volume

213

Number

1

State

French Republic

Pages from

705

Pages to

712

Pages count

8

URL

https://www.epj-conferences.org/articles/epjconf/abs/2019/18/epjconf_efm18_02104/epjconf_efm18_02104.html

Full text in the Digital Library

http://hdl.handle.net/11012/193670

BibTex

@inproceedings{BUT154064,
  author="Lucie {Zemanová} and Pavel {Rudolf}",
  title="Turbulence Models for Simulation of the Flow in a Rotor-Stator Cavity",
  booktitle="Proceedings of the International conference Experimental Fluid Mechanics 2018",
  year="2019",
  journal="EPJ Web of Conferences",
  volume="213",
  number="1",
  pages="705--712",
  publisher="EDP Sciences",
  address="Studentská 2, 461 17 Liberec 1, Czech Republic",
  doi="10.1051/epjconf/201921302104",
  issn="2100-014X",
  url="https://www.epj-conferences.org/articles/epjconf/abs/2019/18/epjconf_efm18_02104/epjconf_efm18_02104.html"
}