Unsteady simulations in train aerodynamics
Paper in proceedings, 2014

This paper presents the present status of unsteady simulations in train aerodynamics. The approaches range from large-eddy simulation, hybrid RANS-LES in the form of detached-eddy simulations and partially-averaged Navier-Stokes to unsteady Reynolds-averaged Navier-Stokes. Use of a hybrid technique called partially-averaged Navier-Stokes is discussed. Applications of different techniques are illustrated with examples from predictions of flows around generic train vehicles. Numerical prediction of crosswind stability and flow control of train-like vehicles is discussed.

URANS

PANS

LES

Large-eddy simulation

DES

Partially-averaged Navier-Stokes

Train aerodynamics

Author

Sinisa Krajnovic

Chalmers, Applied Mechanics, Fluid Dynamics

Civil-Comp Proceedings

17593433 (ISSN)

Vol. 104

Second International Conference on Railway Technology
Corsica, France,

Areas of Advance

Transport

Subject Categories

Vehicle Engineering

Fluid Mechanics and Acoustics

More information

Latest update

2/18/2021