Detail publikace

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

ZEMANOVÁ, L. RUDOLF, P.

Anglický název

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

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

en

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova anglicky

Rotor-Stator Cavity, Instability, CFD

Vydáno

28.06.2019

Nakladatel

EDP Sciences

Místo

Studentská 2, 461 17 Liberec 1, Czech Republic

ISSN

2100-014X

Kniha

Proceedings of the International conference Experimental Fluid Mechanics 2018

Ročník

213

Číslo

1

Číslo edice

1

Strany od–do

705–712

Počet stran

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"
}