Numerical solution of incompressible flow through branched channels

0359630 - ÚT 2012 RIV GB eng J - Journal Article
Louda, Petr - Kozel, K. - Příhoda, Jaromír - Beneš, L. - Kopáček, T.
Numerical solution of incompressible flow through branched channels.
Computers & Fluids. Roč. 46, č. 1 (2011), s. 318-324. ISSN 0045-7930. E-ISSN 1879-0747
R&D Projects: GA ČR GA103/09/0977; GA ČR GAP101/10/1230
Institutional research plan: CEZ:AV0Z20760514
Keywords : channel flow * branched channel * EARSM turbulence model
Subject RIV: BK - Fluid Dynamics
Impact factor: 1.810, year: 2011
http://www.sciencedirect.com/science/article/pii/S0045793010003506

The paper deals with the numerical solution of 3D turbulent flow in a straight channel and branched channels with two outlets. The mathematical model of the flow is based on Reynolds-averaged Navier-Stokes equations for incompressible flow closed by the explicit algebraic Reynolds stress turbulence model (EARSM). The model is solved by the finite volume method using the artificial compressibility method with the implicit discretization. The ability of the EARSM turbulence model to capture corner secondary vortices was demonstrated using the developed flow in a straight channel of square cross-section. Numerical simulation of turbulent flow through channels with a perpendicular branch was carried out for two flow rates. Methods of setting the flow rate are discussed.
Permanent Link: http://hdl.handle.net/11104/0197380