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Evaluation of LES models for flow over bluff body from engineering application perspective |
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| Authors: | S Vengadesan A. Nakayama |
| Affiliation: | (1) Department of Applied Mechanics, Indian Institute of Technology-Madras, 600 036 Chennai, India;(2) Department of Science of Regional and Built Environments, Graduate School of Science & Technology, Kobe University, 657-8501 Kobe, Japan |
| Abstract: | Three SGS stress closure LES models are evaluated for turbulent flow over a square cylinder. Emphasis is placed on solving engineering-application-type problems on affordable computer resources and within reasonable turnaround times. Results are compared with available experimental data and previously published workshop results. Numerical strategies are kept the same for all the cases. Results are also discussed keeping in view limitations of LES methodology of modelling for practical problems and current developments. It is concluded that a one-equation model for subgrid kinetic energy is the best choice. |
| Keywords: | Subgrid scale stress models engineering flows flow over bluff body |
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