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Report on different large eddy simulation models

Christoffers R.B. (2013) Report on different large eddy simulation models. Bachelor's Thesis, Mathematics.

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This thesis looks at the theory behind different large eddy simulation models and aims for a basic understanding in the topic. The aim of large eddy simulations is to model a turbulence flow by preserving most of its properties, like the effects from smaller eddies on the larger eddies, but without the full cost of a direct numerical simulation (DNS). The models discussed in this thesis are the approximate deconvolution procedure (ADP), the scale residual method (SRM) and the eddy viscosity method (EVM). In the research of this thesis a channel flow is simulated by the Clark model and qr-model which are examples of the ADP and EVM models, respectively. These results are tested versus the DNS data and the theoretical frame provided by the law of the wall. Further there is also a custom made large eddy simulation model for this thesis, which results are also included in the research. It turns out that the Clark model, qr-model and the custom model all comply with the wall of the law and the DNS data.

Item Type: Thesis (Bachelor's Thesis)
Degree programme: Mathematics
Thesis type: Bachelor's Thesis
Language: English
Date Deposited: 15 Feb 2018 07:53
Last Modified: 15 Feb 2018 07:53

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