A Validation Study of Openfoam for Hybrid Rans-Les Simulation of Incompressible Flow over a Backward Facing Step and Delta Wing

Author

Visrant Choudhury

Issuing Body

Mississippi State University

Advisor

Walters, Keith

Committee Member

Janus, Mark

Committee Member

Bhushan, Shanti

Date of Degree

5-17-2014

Document Type

Graduate Thesis - Open Access

Major

Aerospace Engineering

Degree Name

Master of Science

College

James Worth Bagley College of Engineering

Department

Department of Aerospace Engineering

Abstract

he primary objective of this study is to validate and/or identify issues for available numerical methods and turbulence models in OpenFOAM 2.0.0. Such a study will provide a guideline for users, will aid acceptance of OpenFOAM as one of the research solvers at institutions and also guide future multidisciplinary research using OpenFOAM. In addition, a problem of aerospace interest such as the flow features and vortex breakdown around a VFE-II model is obtained for SA, SST RANS and SA-DDES models and compared with DLR experiment. The available numerical methods such as time schemes, convection schemes, P-V couplings and turbulence models are tested as available for a fundamental case of a backward facing step for RANS and Hybrid RANSLES prediction of fully turbulent flow at a Reynolds number of 32000 and the OpenFOAM predictions are validated against experimental data by Driver et.al and compared with Fluent predictions.

URI

https://hdl.handle.net/11668/19902

Recommended Citation

Choudhury, Visrant, "A Validation Study of Openfoam for Hybrid Rans-Les Simulation of Incompressible Flow over a Backward Facing Step and Delta Wing" (2014). Theses and Dissertations. 338.
https://scholarsjunction.msstate.edu/td/338