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Evaluation of RANS turbulence models for the simulation of channel flow
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology.
2014 (English)Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The objective of this report is to investigate how RANS models perform on fully developed channel flow, for Re = 13 350, and the simulations are made with the open source software OpenFOAM. The velocity and turbulent kinetic energy profiles are compared with previously published DNS results. A short introduction to turbulence modelling is presented with focus on channel flow and the boundary layer. In total eleven models are evaluated, and the results are of varying quality. A convergence study is presented for two models,  and reveals that the expected second order convergence is fulfilled for one of them, whereas the study for the other model is more ambiguous without a clear conclusion. The OpenFOAM case setups for each model and the results gathered from the simulations are publicly available.

Place, publisher, year, edition, pages
IT, 14 072
National Category
Engineering and Technology
URN: urn:nbn:se:uu:diva-238649OAI: oai:DiVA.org:uu-238649DiVA: diva2:771689
Educational program
Freestanding course
Available from: 2014-12-15 Created: 2014-12-15 Last updated: 2014-12-15Bibliographically approved

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