On Unsteady Simulations in Train Aerodynamics
Paper in proceedings, 2014

The paper presents the present status of unsteady simulations in train aerodynamics. The approaches range from Large-Eddy Simulation, hybrid RANS-LES in form of so called Detached-Eddy Simulations and Partially-Averaged Navier-Stokes to unsteady Reynolds-Averaged Navier-Stokes. Usage 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.

hybrid RANS-LES

Partially-Averaged Navier-Stokes

train aerodynamics


crosswind stability

flow control


Sinisa Krajnovic

Chalmers, Applied Mechanics, Fluid Dynamics

Railways 2014 The Second International Conference on Railway Technology: Research, Development and Maintenance Ajaccio, Corsica, France 8-11 April 2014

Driving Forces

Sustainable development

Areas of Advance



C3SE (Chalmers Centre for Computational Science and Engineering)

Subject Categories

Fluid Mechanics and Acoustics

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