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Implicit subgrid-scale modeling by adaptive local deconvolution

  1. Stefan Hickel*,
  2. Nikolaus A. Adams

Article first published online: 13 DEC 2004

DOI: 10.1002/pamm.200410211

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PAMM

PAMM

Volume 4, Issue 1, pages 460–461, December 2004

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How to Cite

Hickel, S. and Adams, N. A. (2004), Implicit subgrid-scale modeling by adaptive local deconvolution. Proc. Appl. Math. Mech., 4: 460–461. doi: 10.1002/pamm.200410211

Author Information

  1. Technische Universität Dresden, Institut für Strömungsmechanik, 01062 Dresden, Germany

*Phone: +49 351 463 39650, Fax: +49 351 463 35246

Publication History

  1. Issue published online: 13 DEC 2004
  2. Article first published online: 13 DEC 2004

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Abstract

A class of implicit Subgrid-Scale (SGS) models for Large-Eddy Simulation (LES) is obtained from a new approach for the finite-volume discretization of hyperbolic conservation laws. The extension of a standard deconvolution operator and the choice of a suitable numerical flux function result in a truncation error which can be forced to have physical significance. As determined by a modified-differential-equation analysis, the free parameters of this implicit SGS model can be adjusted to approximate a known explicit SGS model. Computational results for the viscous Burgers equation show that the model with parameters identified by evolutionary optimization gives significantly better predictions than other models. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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