The Evaluation of the Boundary Vorticity by URANS and LES Methods
Journal Title: INCAS BULLETIN - Year 2015, Vol 7, Issue 4
Abstract
The role of concentrated vorticity in fluid dynamics phenomena, concerning both the vorticity creation at the boundary and the response to the flow field is not wholly understood. The Lighthill describes the vorticity production at a solid boundary as a slow diffusion of the vorticity similar to the Fourier heat conduction. In the paper it is shown that this mechanism associated to URANS method is not applied to the concentrated vorticity case, and the LES method better reproduces the flows involving concentrations vorticity.
Authors and Affiliations
Ion MALAEL, Horia DUMITRESCU, Vladimir CARDOS
Keywords
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- EP ID EP106597
- DOI 10.13111/2066-8201.2015.7.4.10
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