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Large eddy simulations of side flow past a generic model of a high-speed train

Large eddy simulations of side flow past a generic model of a high-speed train
Large eddy simulations of side flow past a generic model of a high-speed train
Computational fluid dynamics (CFD) has been utilized to investigate straight and side flow over a simplified model of the concept high-speed Next Generation Train of the DLR. Large eddy simulation (LES) with a finite volume method for unstructured grids and a lattice Boltzmann method (LBM) were performed to compare the results. The Reynolds number of the flow was Re=2.1×10^5 and the investigated yaw angle was 30 degrees. The flow fields and the aerodynamic forces predicted with these two different methods are compared for the validation case of the flow past a sphere and the flow around the generic train model. Both approaches yield similar force predictions and exhibit different strengths and weaknesses throughout the computational process which are discussed.
132
421-431
Springer
Kin, Natalia
ce02244b-6651-47e3-8325-2c0a0c9c6314
Deiterding, Ralf
4f53b512-02cc-4b26-8071-9756c9dfdf54
Wagner, Claus
bb61da3c-93e6-4f7d-b47d-0e52dba616c5
Dillmann, Andreas
Kin, Natalia
ce02244b-6651-47e3-8325-2c0a0c9c6314
Deiterding, Ralf
4f53b512-02cc-4b26-8071-9756c9dfdf54
Wagner, Claus
bb61da3c-93e6-4f7d-b47d-0e52dba616c5
Dillmann, Andreas

Kin, Natalia, Deiterding, Ralf and Wagner, Claus (2016) Large eddy simulations of side flow past a generic model of a high-speed train. In, Dillmann, Andreas (ed.) New Results in Numerical and Experimental Fluid Mechanics X. (Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 132) Berlin, DE. Springer, pp. 421-431. (doi:10.1007/978-3-319-27279-5_37).

Record type: Book Section

Abstract

Computational fluid dynamics (CFD) has been utilized to investigate straight and side flow over a simplified model of the concept high-speed Next Generation Train of the DLR. Large eddy simulation (LES) with a finite volume method for unstructured grids and a lattice Boltzmann method (LBM) were performed to compare the results. The Reynolds number of the flow was Re=2.1×10^5 and the investigated yaw angle was 30 degrees. The flow fields and the aerodynamic forces predicted with these two different methods are compared for the validation case of the flow past a sphere and the flow around the generic train model. Both approaches yield similar force predictions and exhibit different strengths and weaknesses throughout the computational process which are discussed.

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More information

Published date: 29 March 2016
Organisations: Aerodynamics & Flight Mechanics Group

Identifiers

Local EPrints ID: 380659
URI: http://eprints.soton.ac.uk/id/eprint/380659
PURE UUID: 0694020c-5062-45b1-a137-83511b9e7fda
ORCID for Natalia Kin: ORCID iD orcid.org/0000-0003-4776-8183

Catalogue record

Date deposited: 12 Apr 2016 11:43
Last modified: 15 Mar 2024 03:52

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Contributors

Author: Natalia Kin ORCID iD
Author: Ralf Deiterding
Author: Claus Wagner
Editor: Andreas Dillmann

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