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A synthetic-eddy-method for generating inflow conditions for large-eddy simulations

TitleA synthetic-eddy-method for generating inflow conditions for large-eddy simulations
Publication TypeJournal Article
Year of Publication2006
AuthorsJarrin, N, Benhamadouche, S, Laurence, D, Prosser, R
JournalInternational Journal of Heat and Fluid Flow
Volume27
Pagination585 - 593
ISSN0142-727X
KeywordsChannel flow
AbstractThe generation of inflow data for spatially developing turbulent flows is one of the challenges that must be addressed prior to the application of LES to industrial flows and complex geometries. A new method of generation of synthetic turbulence, suitable for complex geometries and unstructured meshes, is presented herein. The method is based on the classical view of turbulence as a superposition of coherent structures. It is able to reproduce prescribed first and second order one point statistics, characteristic length and time scales, and the shape of coherent structures. The ability of the method to produce realistic inflow conditions in the test cases of a spatially decaying homogeneous isotropic turbulence and of a fully developed turbulent channel flow is presented. The method is systematically compared to other methods of generation of inflow conditions (precursor simulation, spectral methods and algebraic methods).
URLhttp://www.sciencedirect.com/science/article/pii/S0142727X06000282
DOI10.1016/j.ijheatfluidflow.2006.02.006