Application of advanced turbulence models for turbulent flow in a plane asymmetric diffuser

0349205 - ÚT 2011 RIV SK eng C - Conference Paper (international conference)
Příhoda, Jaromír - Sedlář, M.
Application of advanced turbulence models for turbulent flow in a plane asymmetric diffuser.
Aplikácia experimentálnych a numerických metód v mechanike tekutín a energetike, zborník referátov. Žilina: EDIS Žilina, 2010, s. 249-254. ISBN 978-80-554-0189-8.
[Aplikácia experimentálnych a numerických metód v mechanike tekutín a energetike. Bojnice (SK), 28.04.2010-30.04.2010]
R&D Projects: GA ČR GA103/09/0977
Institutional research plan: CEZ:AV0Z20760514
Keywords : plane asymmetric diffuser * modelling of separated flow
Subject RIV: BK - Fluid Dynamics

Turbulent flow in a plane diffuser was numerically simulated using the commercial software ANSYS CFX 12.0. Besides the standard two-equation k-eps and k-omega models, advanced models like SST-SAS, RANS-LES and EARSM were tested using a well known test case - turbulent flow in a plane asymmetric diffuser. Numerical simulations were focused mainly on the ability of models to predict the extent of the separation region and the relaxation of the shear layer after the reattachment. The best results were obtained using the explicit algebraic Reynolds stress model.
Permanent Link: http://hdl.handle.net/11104/0189507