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Numerical Experiments with a New Dynamic Mixed Subgrid-Scale Model

  • P. LampitellaEmail author
  • F. Inzoli
  • E. Colombo
Conference paper
Part of the ERCOFTAC Series book series (ERCO, volume 20)

Abstract

In the present work we introduce an LES framework which does not require any commutation property between filtering and derivative operators. A consistent redefinition of the SGS tensor in the new framework introduces several differences in the classical modeling strategies, including a modified, cheaper, form of Germano dynamic procedure. This dynamic procedure is exploited trough a new form of mixed model, whose scale-similar part is derived by a Taylor series analysis of the SGS tensor. The model is implemented in a commercial unstructured finite volume solver and numerical tests are performed on the turbulent channel flow at \(\mathrm {Re}_\tau = 590\), showing the flexibility and accuracy of the proposed modeling strategy.

Keywords

Turbulent Channel Flow Filter Level Finite Volume Solver Dynamic Mixed Model Commutation Error 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.Department of EnergyPolitecnico di MilanoMilanItaly

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