Paper Info
Title
Wavelet-based adaptive large-eddy simulation with explicit filtering
Abstract
Stochastic coherent adaptive large-eddy simulation is a novel approach to the numerical simulation of turbulence, where the coherent energetic eddies are solved for, while modeling the influence of the less energetic coherent/incoherent background flow. The formal separation between resolved and unresolved field is obtained by wavelet threshold filtering that is inherent to the adaptive wavelet collocation numerical method. A new explicit wavelet filtering strategy is introduced and tested, by considering two different filtering levels: the physical level, which controls the turbulence model, and the numerical level that is responsible for the accuracy of numerical simulations. The theoretical basis for wavelet-based adaptive large-eddy simulation with explicit filtering and consistent dynamic modeling is given. Numerical experiments are presented for unsteady homogeneous turbulence, demonstrating the existence of grid-independent solutions.
Year
DOI
Venue
2013
10.1016/j.jcp.2012.09.030
J. Comput. Physics
Keywords
Field
DocType
new explicit wavelet,wavelet collocation numerical method,coherent energetic eddy,numerical experiment,wavelet threshold,unsteady homogeneous turbulence,stochastic coherent adaptive large-eddy,wavelet-based adaptive large-eddy simulation,numerical level,numerical simulation,turbulence model,wavelets,coherent structures
Mathematical optimization,Computer simulation,Large eddy simulation,Turbulence,Filter (signal processing),System dynamics,Numerical analysis,Mathematics,Collocation,Wavelet
Journal
Volume
ISSN
Citations 
238,
0021-9991
0
PageRank 
References 
Authors
0.34
2
2
Name
Order
Citations
PageRank
Giuliano De Stefano100.68
Oleg V. Vasilyev27911.72