Flow Over Backward Facing Step with Inclined Wall Solved by Finite Volume and Finite Element Method

0353525 - ÚT 2011 RIV GR eng C - Konferenční příspěvek (zahraniční konf.)
Louda, Petr - Sváček, P. - Kozel, K. - Příhoda, Jaromír
Flow Over Backward Facing Step with Inclined Wall Solved by Finite Volume and Finite Element Method.
ICNAAM 2010. Melville: American Institute of Physics, 2010 - (Simos, T.), s. 99-102. AIP Conference Proceedings, Vol. 1281. ISBN 978-0-7354-0831-9.
[ICNAAM 2010 : International Conference on Numerical Analysis and Applied Mathematics 2010 /8./. Rhodes (GR), 19.09.2010-25.09.2010]
Grant CEP: GA ČR GA103/09/0977
Výzkumný záměr: CEZ:AV0Z20760514
Klíčová slova: backward facing step * finite volume method * finite element method
Kód oboru RIV: BK - Mechanika tekutin

The work deals with numerical solution of 2D incompressible flow over backward facing step. The inclination angles of the upper wall of the channel were chosen according to experiment of Driver and Seegmiller (1985). Two numerical methods were considered – the finite volume method and the finite element method. Turbulence is modelled using two-equation turbulence models of k-omega type. The influence of outlet boundary condition is discussed and do-nothing-like condition found suitable also for finite volume method. The both methods were compared with experimental data for laminar and turbulent case. The sensitivity of the computation to these circumstances increases for higher inclination angle (diffuser flow).
Trvalý link: http://hdl.handle.net/11104/0192758