A test problem for outflow boundary conditions—flow over a backward‐facing step

International Journal for Numerical Methods in Fluids - Tập 11 Số 7 - Trang 953-967 - 1990
David Gartling1
1Fluid and Thermal Sciences Department, Sandia National Laboratories, Albuquerque, NM 87185, U.S.A.

Tóm tắt

AbstractA 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.

Từ khóa


Tài liệu tham khảo

10.1017/S0022112083002839

D. K.Gartling ‘NACHOS II—a finite element computer program for incompressible flow problems’ SAND86–1816 and SAND86–1817 Sandia National Laboratories Albuquerque NM 1987.

1988, FIDAP Theoretical Manual, Version 4.5

D. K.Gartling ‘MERLIN II—a computer program to transfer solution data between finite element meshes’ SAND89–2989 Sandia National Laboratories Albuquerque NM 1990.

10.1016/0021-9991(85)90148-2

10.1002/fld.1650081202

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International Journal for Numerical Methods in Fluids

Tập 11 Số 7

953-967

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