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Introduction of turbulent model in a mixed finite volume/finite element method
Author(s) -
Le Ribault C.,
Buffat M.,
Jeandel D.
Publication year - 1995
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.1650210805
Subject(s) - turbulence , finite volume method , finite element method , mechanics , compressibility , flow (mathematics) , incompressible flow , computational fluid dynamics , k epsilon turbulence model , supersonic speed , compressible flow , mathematics , physics , thermodynamics
The aim of this work is to present a new numerical method to compute turbulent flows in complex configurations. With this in view, a k ‐ϵ model with wall functions has been introduced in a mixed finite volume/finite element method. The numerical method has been developed to deal with compressible flows but is also able to compute nearly incompressible flows. The physical model and the numerical method are first described, then validation results for an incompressible flow over a backward‐facing step and for a supersonic flow over a compression ramp are presented. Comparisons are performed with experimental data and with other numerical results. These simulations show the ability of the present method to predict turbulent flows, and this method will be applied to simulate complex industrial flows (flow inside the combustion chamber of gas turbine engines). The main goal of this paper is not to test turbulence models, but to show that this numerical method is a solid base to introduce more sophisticated turbulence model.