On Unsteady Simulations in Train Aerodynamics
Paper i proceeding, 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

LES

crosswind stability

flow control

Författare

Sinisa Krajnovic

Chalmers, Tillämpad mekanik, Strömningslära

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

Drivkrafter

Hållbar utveckling

Styrkeområden

Transport

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

Ämneskategorier

Strömningsmekanik och akustik