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An anisotropic synthetic turbulence method for Large-Eddy Simulation

Auerswald, Torsten and Probst, Axel and Bange, Jens (2016) An anisotropic synthetic turbulence method for Large-Eddy Simulation. International Journal of Heat and Fluid Flow, pp. 407-422. Elsevier. DOI: 10.1016/j.ijheatfluidflow.2016.09.002 ISSN 0142-727X

Full text not available from this repository.

Official URL: http://www.sciencedirect.com/science/journal/0142727X/62/part/PB

Abstract

The method for generating anisotropic synthetic turbulence by Auerswald and Bange (2015) is extended to account for the integral length scales in y - and z -direction. This extension leads to more realistic tur- bulent structures. The method reproduces the given turbulence statistics very well and allows to set a number of turbulence parameters independently. In four Large-Eddy Simulations of a channel flow the synthetic turbulence is used as inflow boundary condition. The performance of the synthetic turbulence is tested and compared to the Direct Numerical Simulation (DNS) results by Moser et al. (1999). In these simulations the synthetic turbulence shows good performance in recovering realistic turbulence down- stream in the channel. The skin-friction coefficient converges to the level of the DNS. The profiles of the Reynolds stresses are very similar in the LES and the DNS except for the profiles of R + ww where large deviations occur.

Item URL in elib:https://elib.dlr.de/111139/
Document Type:Article
Additional Information:International Journal of Heat and Fluid Flow 62 (2016) 407–422; Available online 28 September 2016; Volume 62, Part B- selected pp. 129-598 (December 2016)
Title:An anisotropic synthetic turbulence method for Large-Eddy Simulation
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Auerswald, Torstenenvironmental physics, eberhard karls universtät tübingenUNSPECIFIED
Probst, AxelAxel.Probst (at) dlr.deUNSPECIFIED
Bange, Jensenvironmental physics, eberhard karls universtät tübingenUNSPECIFIED
Date:2016
Journal or Publication Title:International Journal of Heat and Fluid Flow
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1016/j.ijheatfluidflow.2016.09.002
Page Range:pp. 407-422
Publisher:Elsevier
Series Name:Elsevier
ISSN:0142-727X
Status:Published
Keywords:Synthetic turbulence, Large-Eddy Simulation, Channel flow
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > CASE, GO
Deposited By: Bachmann, Barbara
Deposited On:02 Aug 2017 13:50
Last Modified:06 Sep 2019 15:26

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