Numerical simulations of turbulent 3D flow in channel junction

0398570 - ÚT 2014 RIV DE eng C - Conference Paper (international conference)
Louda, P. - Kozel, K. - Příhoda, Jaromír - Beneš, L.
Numerical simulations of turbulent 3D flow in channel junction.
Numerical Mathematics and Advanced Applications 2011. Berlin: Springer, 2013 - (Cangiani, A.), s. 539-547. ISBN 978-3-642-33133-6.
[ENUMATH 2011 - European Conference on Numerical Mathematics and Advanced Applications /9./. Leicester (GB), 05.09.2011-09.09.2011]
R&D Projects: GA ČR GAP101/10/1230
Institutional support: RVO:61388998
Keywords : : turbulent complex flow * channel junction * EARSM turbulence model
Subject RIV: BK - Fluid Dynamics

The contribution deals with numerical 3D simulations of incompressible turbulent flow in a channel junction with one inlet and two outlets. The complex flow in the junction includes separation, impingement and secondary flow. The mathematical model is based on unsteady Reynolds-averaged Navier-Stokes equations with an explicit algebraic Reynolds stress turbulence model. The solution method uses the dual time artificial compressibility scheme with the upwind finite volume discretization. Some methods of ensuring prescribed flow-rate distribution are tested and discussed. Numerical results are compared with PIV measurement.
Permanent Link: http://hdl.handle.net/11104/0227892