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Numerical Stall Behavior Investigation of an Aircraft Equipped with Coanda Flap and Droop Nose Read chapter Read first chapter

2016 | OriginalPaper | Chapter

Large Eddy Simulations of Side Flow Past a Generic Model of a High-Speed Train

Authors : Natalia Kin, Ralf Deiterding, Claus Wagner

Published in: New Results in Numerical and Experimental Fluid Mechanics X

Publisher: Springer International Publishing

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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 \(\mathrm {Re}=2.1\,\times \,10^5\) and the investigated yaw angle was \(30^\circ \). 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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Metadata
Title
Large Eddy Simulations of Side Flow Past a Generic Model of a High-Speed Train
Authors
Natalia Kin
Ralf Deiterding
Claus Wagner
Copyright Year
2016
Book
New Results in Numerical and Experimental Fluid Mechanics X

Print ISBN: 978-3-319-27278-8

Electronic ISBN: 978-3-319-27279-5

Copyright Year: 2016

DOI
https://doi.org/10.1007/978-3-319-27279-5_37

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