A restricted nonlinear large eddy simulation model for high Reynolds number flows
A restricted nonlinear large eddy simulation model for high Reynolds number flows
复制标题
高雷诺数流动的受限非线性大涡模拟模型
DOI:
10.1080/14685248.2017.1403031
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发表时间:
2017
影响因子:
1.9
通讯作者:
Gayme, Dennice F.
中科院分区:
文献类型:
--
作者:
Bretheim, Joel U.;Meneveau, Charles;Gayme, Dennice F.
Recent numerical studies of the restricted nonlinear (RNL) model have demonstrated its ability to reproduce important features of wall turbulence despite a severe reduction in the number of degrees of freedom. In these prior studies, the RNL model included full resolution of the viscous term. In this work, we extend the RNL model to arbitrarily high Reynolds numbers by developing a RNL large eddy simulation (LES) framework along with a method to systematically identify an appropriate streamwise wavenumber support based on spectral properties of wall turbulence. This method leads to a band-limited RNL–LES system which is successful in reproducing some of the most important statistical features captured in previous low to moderate Reynolds number simulations, e.g. the mean velocity and second-order moment profiles. The RNL–LES framework offers a new approach to understanding the connection between coherent structures and the momentum transfer mechanisms of wall turbulence at arbitrarily high Reynolds numbers, where resolution of the viscous terms can become computationally expensive even with the relatively low computational complexity afforded through the dynamical restriction of the RNL model.
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影响因子:
4.6
作者:
B. Farrell;P. Ioannou
通讯作者:
B. Farrell;P. Ioannou
DOI:
--
发表时间:
2011
期刊:
Proceeding of Seventh International Symposium on Turbulence and Shear Flow Phenomena
影响因子:
--
作者:
J. Bourguignon;B. McKeon
通讯作者:
B. McKeon
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
F. Alizard;F. Alizard
通讯作者:
F. Alizard
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
K. Srinivasan;W. Young
通讯作者:
W. Young
DOI:
10.1175/2007jas2510.1
发表时间:
2007
期刊:
arXiv: Fluid Dynamics
影响因子:
--
作者:
J. Marston;E. Conover;T. Schneider
通讯作者:
T. Schneider