期刊
JOURNAL OF SCIENTIFIC COMPUTING
卷 49, 期 1, 页码 94-110出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10915-011-9504-4
关键词
Large eddy simulation; Eddy viscosity; Confinement of turbulent dynamics; Invariants of strain rate tensor
Large eddy simulation (LES) seeks to predict the dynamics of spatially filtered turbulent flows. The very essence is that the LES-solution contains only scales of size >=Delta, where Delta denotes some user-chosen length scale. This property enables us to perform a LES when it is not feasible to compute the full, turbulent solution of the Navier-Stokes equations. Therefore, in case the large eddy simulation is based on an eddy viscosity model we determine the eddy viscosity such that any scales of size
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