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| Author(s) Ugo Piomelli, Carlo Scalo |
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| Title Large-eddy simulations of relaminarization due to freestream acceleration |
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| Publication Name Seventh IUTAM Symposium on Laminar-Turbulent Transition |
Publication Type Journal |
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| Publisher Springer-Verlag |
Place Heidelberg |
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Publication Year 2009 |
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| Abstract The reversion of a turbulent flow to a laminar or quasi-laminar state may take different paths, depending on the cause of the relaminarization; modelling these flows is quite difficult. Large-eddy simulations (LES) may be quite effective as the large, momentum carrying eddies are accurately resolved; the unresolved, subgrid-scale (SGS) stresses, however, may still play an important role. We report here the results of a study of the SGS stresses in a boundary layer subjected to freestream acceleration. The \textit{a priori} test results are accompanied by actual LES, which highlight the effect of grid resolution and modelling errors on the dynamics of the relaminarization. |
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| Website http:// |
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| Paper Status Accepted |
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