In English

Investigation of turbulence models for two dimensional mean flows and implementation in OpenFOAM

Manan Lalit
Göteborg : Chalmers tekniska högskola, 2014. Diploma work - Department of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, ISSN 1652-8557; 2014:78, 2014.
[Examensarbete på avancerad nivå]

With an intention of discovering the best RANS model for modeling impinging flows, linear epsilon - based models(`Chien's Low Reynolds' and `-f') and non-linear( and !- based) EARSM formulations were implemented on OpenFOAM-2.2.x and validated against two dimensional, developed channel flow geometries. The project arose from the need to capture flow arising from a flame impingement on the walls of an (internal combustion) engine cylinder. The objective desired from this project is to achieve directives regarding `optimal' turbulence models, defined as those which sufficiently reproduce the flow dynamics, and are applicable over a wide variety of meshes, while not being too costly on the computational front. A rating scheme for judging the quality of turbulence models, based on the aforementioned three characteristics, is discussed as part of the conclusions from this thesis project.

Nyckelord: Chien, EARSM, Wallin-Johansson, Menter, k ! BSL, Channel, OpenFOAM



Publikationen registrerades 2015-02-13.

CPL ID: 212564

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