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Detached-Eddy Simulations Applied to Unsteady Crosswind Aerodynamics of Ground Vehicles
KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center for ECO2 Vehicle design.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Rail Vehicles.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Aeroacoustics.ORCID iD: 0000-0002-9061-4174
2010 (English)In: PROGRESS IN HYBRID RANS-LES MODELLING, Berlin: SPRINGER-VERLAG , 2010, Vol. 111, 167-177 p.Conference paper, Published paper (Refereed)
Abstract [en]

Crosswind stability is an important safety issue for manufacturers of cars, buses and rail vehicles. Since side wind conditions are unsteady phenomena they require time-dependent techniques to simulate the flow. In this study, a hybrid RANS-LES methods, Detached-Eddy Simulation, is applied to evaluate headwind and unsteady crosswind situations for a simple model of car. A grid refinement study is carried out to evaluate the accuracy of the calculations. Convergence in the force coefficients while refining the grid suggests that a certain level of grid convergence is reached. A similar conclusion is drawn from the unsteady simulations.

Place, publisher, year, edition, pages
Berlin: SPRINGER-VERLAG , 2010. Vol. 111, 167-177 p.
Series
Notes on Numerical Fluid Mechanics and Multidisciplinary Design, ISSN 1612-2909 ; 111
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-33981ISI: 000290183600014Scopus ID: 2-s2.0-77957269173ISBN: 978-3-642-14167-6 (print)OAI: oai:DiVA.org:kth-33981DiVA: diva2:419850
Conference
3rd Symposium on Hybrid RANS-LES Methods Gdansk, POLAND, JUN 10-12, 2009
Note
QC 20110530Available from: 2011-05-30 Created: 2011-05-23 Last updated: 2012-03-20Bibliographically approved

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Efraimsson, Gunilla

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CiteExportLink to record
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Citation style
  • apa
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