Partially-Averaged navier-stokes simulations of flows around two different ahmed bodies
Artikel i vetenskaplig tidskrift, 2015

The paper reports a study about the prediction of flows around simplified vehicles using Partially-Averaged Navier-Stokes (PANS). Numerical simulations are performed for two simplified vehicles: a slanted-back Ahmed body at Re. =. 30,000 and a squared-back Ahmed body at Re. =. 300,000. A comparison of the resolved and modeled physical flow scales is made with corresponding LES and experimental data for a better understanding of the performance of the PANS model. The PANS model is compared for coarse and fine grid resolutions and it is indicated that even a coarse-grid PANS simulation is able to produce fairly close flow predictions to those from a well-resolved LES simulation. The results indicate the possibility of improvement of the predictions by employing a finer grid resolution.

Large eddy simulation

Partially averaged navier-stokes

Ahmed body

PANS

LES

Författare

Maryam Mirzaei

Chalmers, Tillämpad mekanik, Strömningslära

Sinisa Krajnovic

Chalmers, Tillämpad mekanik, Strömningslära

B. Basara

AVL

Computers and Fluids

0045-7930 (ISSN)

Vol. 117 273-286

Ämneskategorier

Strömningsmekanik och akustik

DOI

10.1016/j.compfluid.2015.05.010