Numerical Experiments with a New Dynamic Mixed Subgrid-Scale Model View Full Text


Ontology type: schema:Chapter     


Chapter Info

DATE

2015-01-28

AUTHORS

P. Lampitella , F. Inzoli , E. Colombo

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 Reτ=590\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathrm {Re}_\tau = 590$$\end{document}, showing the flexibility and accuracy of the proposed modeling strategy. More... »

PAGES

15-21

Book

TITLE

Direct and Large-Eddy Simulation IX

ISBN

978-3-319-14447-4
978-3-319-14448-1

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/978-3-319-14448-1_2

DOI

http://dx.doi.org/10.1007/978-3-319-14448-1_2

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1023456989


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