An algebraic variational multiscale-multigrid method for large-eddy simulation: generalized-α time integration, Fourier analysis and application to turbulent flow past a square-section cylinder
An algebraic variational multiscale-multigrid method for large-eddy simulation: generalized-α time integration, Fourier analysis and application to turbulent flow past a square-section cylinder
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用于大涡模拟的代数变分多尺度多重网格方法:广义α时间积分、傅立叶分析及其在流经方形截面圆柱体的湍流中的应用
DOI:
10.1007/s00466-010-0541-x
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发表时间:
2011
影响因子:
4.1
通讯作者:
Wall W.A.
中科院分区:
文献类型:
--
作者:
Gravemeier V;Kronbichler M;Gee M.W;Wall W.A.
This article studies three aspects of the recently proposed algebraic variational multiscale-multigrid method for large-eddy simulation of turbulent flow. First, the method is integrated into a second-order-accurate generalized-α time-stepping scheme. Second, a Fourier analysis of a simplified model problem is performed to assess the impact of scale separation on the overall performance of the method. The analysis reveals that scale separation implemented by projective operators provides modeling effects very close to an ideal small-scale subgrid viscosity, that is, it preserves low frequencies, in contrast to non-projective scale separations. Third, the algebraic variational multiscale-multigrid method is applied to turbulent flow past a square-section cylinder. The computational results obtained with the method reveal, on the one hand, the good accuracy achievable for this challenging test case already at a rather coarse discretization and, on the other hand, the superior computing efficiency, e.g., compared to a traditional dynamic Smagorinsky modeling approach.
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影响因子:
2.8
作者:
M. Lallemand;Hervé Stève;A. Dervieux
通讯作者:
M. Lallemand;Hervé Stève;A. Dervieux
DOI:
10.1016/j.cma.2004.06.034
发表时间:
2005-01-01
影响因子:
7.2
作者:
Hughes, TJR;Wells, GN
通讯作者:
Wells, GN
影响因子:
7.2
作者:
V. Gravemeier;M. W. Gee;W. Wall
通讯作者:
W. Wall
DOI:
10.1016/0377-0427(90)90047-4
发表时间:
1990-11
影响因子:
2.4
作者:
P. Hemker
通讯作者:
P. Hemker
DOI:
10.1063/1.857955
发表时间:
1991-07-01
期刊:
PHYSICS OF FLUIDS A-FLUID DYNAMICS
影响因子:
--
作者:
GERMANO, M;PIOMELLI, U;CABOT, WH
通讯作者:
CABOT, WH