Premium
Numerical simulation of high‐Reynolds number flow around circular cylinders by a three‐step FEM–BEM model
Author(s) -
Young D. L.,
Huang J. L.,
Eldho T. I.
Publication year - 2001
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.187
Subject(s) - reynolds number , potential flow around a circular cylinder , finite element method , mathematics , pressure correction method , flow (mathematics) , boundary value problem , cylinder , hele shaw flow , boundary element method , incompressible flow , computational fluid dynamics , mechanics , geometry , mathematical analysis , compressibility , turbulence , physics , open channel flow , thermodynamics
An innovative computational model, developed to simulate high‐Reynolds number flow past circular cylinders in two‐dimensional incompressible viscous flows in external flow fields is described in this paper. The model, based on transient Navier–Stokes equations, can solve the infinite boundary value problems by extracting the boundary effects on a specified finite computational domain, using the projection method. The pressure is assumed to be zero at infinite boundary and the external flow field is simulated using a direct boundary element method (BEM) by solving a pressure Poisson equation. A three‐step finite element method (FEM) is used to solve the momentum equations of the flow. The present model is applied to simulate high‐Reynolds number flow past a single circular cylinder and flow past two cylinders in which one acts as a control cylinder. The simulation results are compared with experimental data and other numerical models and are found to be feasible and satisfactory. Copyright © 2001 John Wiley & Sons, Ltd.