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Main Title: Numerical simulation of a regional train in cross-wind
Author(s): Eichinger, Sándor
Sima, Mikael
Thiele, Frank
Type: Article
Language Code: en
Abstract: In this work numerical investigations of regional trains were carried out studying the prediction accuracy of the aerodynamic load in cross-wind assessment of rail vehicles. The main focus is on 30° yaw angle. Two domain setups, one representing the wind tunnel setup and another more generic one, were investigated and validated against available measurements comparing load coefficients. Important aspects of a guideline assessing aerodynamic load coefficients with numerical simulation techniques are proposed. Based on practical considerations and on the presented results the use of a generic domain is suggested for virtual certification. Further improvement of the flow field prediction can be achieved using unsteady hybrid numerical techniques, such as detached eddy simulation. Load coefficient results of various unsteady approaches and comparisons of simulated and measured flow fields are shown. Hints about the usage of the employed hybrid method are given, and future investigations are proposed.
Issue Date: 2015
Date Available: 23-Oct-2017
DDC Class: 380 Handel, Kommunikation, Verkehr
Subject(s): rail vehicles
cross-wind stability
Journal Title: Proceedings of the Institution of Mechanical Engineers. Part F, Journal of rail and rapid transit
Publisher: Sage Publications
Publisher Place: London [u.a.]
Volume: 229
Issue: 6
Publisher DOI: 10.1177/0954409714555383
Page Start: 625
Page End: 634
EISSN: 2041-3017
ISSN: 0954-4097
Notes: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
Appears in Collections:FG Numerische Fluiddynamik » Publications

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