Publication detail

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

ZEMANOVÁ, L. RUDOLF, P.

English title

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

Type

conference paper

Language

en

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 in English

Rotor-Stator Cavity, Instability, CFD

Released

28.06.2019

Publisher

EDP Sciences

Location

Studentská 2, 461 17 Liberec 1, Czech Republic

ISSN

2100-014X

Book

Proceedings of the International conference Experimental Fluid Mechanics 2018

Volume

213

Number

1

Edition number

1

Pages from–to

705–712

Pages count

8

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",
  volume="213",
  number="1",
  month="June",
  pages="705--712",
  publisher="EDP Sciences",
  address="Studentská 2, 461 17 Liberec 1, Czech Republic",
  issn="2100-014X"
}