Numerical simulation of separated flows in channels

0381178 - ÚT 2013 RIV CN eng J - Journal Article
Louda, P. - Příhoda, Jaromír - Sváček, P. - Kozel, K.
Numerical simulation of separated flows in channels.
Journal of Thermal Science. Roč. 21, č. 2 (2012), s. 145-153. ISSN 1003-2169. E-ISSN 1993-033X
R&D Projects: GA ČR GA103/09/0977
Institutional research plan: CEZ:AV0Z20760514
Keywords : backward facing step flow * EARSM model * SST model
Subject RIV: BK - Fluid Dynamics
Impact factor: 0.302, year: 2012
http://www.springerlink.com/content/806t56t72787g643/fulltext.pdf

The work deals with numerical modelling of turbulent flows in channels with an expansion of the cross-section where separation and reattachment of flow occur. The performance of several eddy viscosity models and an explicit algebraic Reynolds stress model is studied. The used test cases are flows in channels with various backward facing steps where the step is perpendicular or inclined and the top wall is parallel or deflected. Furthermore, a channel with the circular ramp is considered. The numerical solution is achieved by the finite volume method or by the finite element method. The results of both numerical approaches are compared.
Permanent Link: http://hdl.handle.net/11104/0211706