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The use of Direct Numerical Simulation for solving industrial flow problems

Wagner, Claus and Shishkin, Andrei and Shishkina, Olga (2011) The use of Direct Numerical Simulation for solving industrial flow problems. In: Direct and Large-Eddy Simulation VIII ERCOFTAC Series, 15. Springer Verlag, Netherlands. pp. 397-404. ISBN 978-94-007-2481-5 (Print) 978-94-007-2482-2 (Online). ISSN 1382-4309 (Print)

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Official URL: http://link.springer.com/chapter/10.1007/978-94-007-2482-2_63

Abstract

At the end of the last decade it was shown that predictions by means of Direct Numerical Simulations (DNS) agree well with experimental results obtained with Laser Doppler Anemometry and Particle Image Velocimetry (see for example Eggels et al. (1994)) if weakly turbulent flows, i.e. low Reynolds numbers, are considered. In spite of the widely accepted merit of DNS for fundamental flow studies until now the technique could not shake off the prejudice that it is of little use for solving industrial flow problems. The reason might be that the required computational resources increase with approximately the third power of the Reynolds number and most of the industrially relevant flows, and in particular aircraft or vehicle aerodynamics, are characterized by very high Reynolds numbers. In this regard Spalart (1999) estimated in the year 1999, that it will take until 2080 for DNS to be applicable to such flows. However, in the last years we performed a number DNS-studies which are relevant for various industrial branches. The common objective of these incompressible flow simulations was to produce a reliable and comprehensive flow data base for the validation and improvement of corresponding Reynolds-averaged Navier-Stokes simulations (RANS). The latter rely on turbulence models which are known to perform well for simple shear flows but not in general.

Item URL in elib:https://elib.dlr.de/64933/
Document Type:Contribution to a Collection
Additional Information:DOI: 10.1007/978-94-007-2482-2_63, Part VI
Title:The use of Direct Numerical Simulation for solving industrial flow problems
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wagner, Clausclaus.wagner (at) dlr.deUNSPECIFIED
Shishkin, AndreiAndrei.Shishkin (at) dlr.deUNSPECIFIED
Shishkina, OlgaOlga.Shishkina (at) dlr.deUNSPECIFIED
Date:2011
Journal or Publication Title:Direct and Large-Eddy Simulation VIII
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:15
DOI :10.1007/978-94-007-2482-2_63
Page Range:pp. 397-404
Editors:
EditorsEmail
Kürten, HansDepartment of Mechanical Engineering, Eindhoven University of Technology
Guerts, BernardFac. Mathematical Sciences, University of Twente
Armenio, VincenzoDipto. Ingegneria Civile e Ambientale, Università di Trieste
Fröhlich, JochenInstitute of Fluid Mechanics, Inst. Energiemaschinen und, Technical University of Dresden
Publisher:Springer Verlag, Netherlands
Series Name:ERCOFTAC Series
ISSN:1382-4309 (Print)
ISBN:978-94-007-2481-5 (Print) 978-94-007-2482-2 (Online)
Status:Published
Keywords:Turbulence, Direct Numerical Simulation, Aerodynamics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - Projekt Next Generation Train (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Fluid Systems
Deposited By: Wagner, Prof. Dr.-Ing. Claus
Deposited On:22 Sep 2010 09:15
Last Modified:24 Apr 2015 13:16

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