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"
}