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A test problem for outflow boundary conditions—flow over a backward‐facing step
Author(s) -
Gartling David K.
Publication year - 1990
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1650110704
Subject(s) - outflow , computation , reynolds number , mechanics , boundary (topology) , finite element method , flow (mathematics) , boundary value problem , computational fluid dynamics , mathematics , inflow , channel (broadcasting) , compressibility , galerkin method , geometry , incompressible flow , computer science , physics , mathematical analysis , engineering , algorithm , meteorology , structural engineering , computer network , turbulence
A numerical solution for steady incompressible flow over a two‐dimensional backward‐facing step is developed using a Galerkin‐based finite element method. The Reynolds number for the simulations is 800. Computations are performed on an extended channel length to minimize the effect of the outflow boundary on the upstream recirculation zones. A thorough mesh refinement study is performed to validate the results. Extensive profile data at several channel locations are provided to allow future testing and evaluation of outflow boundary conditions.