Constrained large-eddy simulation of separated flow in a channel with streamwise-periodic constrictions
Constrained large-eddy simulation of separated flow in a channel with streamwise-periodic constrictions
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流向周期性收缩通道内分离流的约束大涡模拟
DOI：
10.1080/14685248.2012.740161
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发表时间：
2013-01
影响因子：
1.9
通讯作者：
Shiyi Chen
中科院分区：
文献类型：
--
作者：
Zuoli Xiao;Zuoli Xiao;Shiyi Chen;Shiyi Chen
约束大涡模拟（克莱斯）方法是最近由Chen和他的同事们发展起来的一种模拟附壁和脱壁湍流的方法。在克莱斯，整个域模拟使用大涡模拟（LES），而雷诺应力约束的亚网格尺度（SGS）应力模型的近壁区域。本文采用克莱斯方法模拟了Re = 10，595时具有流向周期性收缩通道内的分离流动。将克莱斯的计算结果与RANS方法、LES方法、分离涡模拟（DES）方法以及Breuer等人和Ziefle等人的LES计算结果进行了比较。比较还表明，克莱斯表现最好的不同的湍流模型测试，证明克莱斯提供了一个很好的替代模型的分离流。此外，不同的克莱斯实现之间的交叉比较已经进行。我们的模拟结果有利于利用代数RANS模型的约束条件或根据DES的思想在整个区域内进行RANS模型方程的求解。
Constrained large-eddy simulation (CLES) method has been recently developed by Chen and his colleagues for simulating attached and detached wall-bounded turbulent flows. In CLES, the whole domain is simulated using large-eddy simulation (LES) while a Reynolds stress constraint is enforced on the subgrid-scale (SGS) stress model for near wall regions. In this paper, CLES is used to simulate the separated flow in a channel with streamwise-periodic constrictions at Re = 10,595. The results of CLES are compared with those of Reynolds-averaged Navier-Stokes (RANS) method, LES, detached eddy simulation (DES) and previous LES results by Breuer et al. and Ziefle et al. Although a coarse grid is used, our results from the present LES, DES and CLES do not show large deviations from the reference results using much finer grid resolution. The comparison also shows that CLES performs the best among different turbulence models tested, demonstrating that the CLES provides an excellent alternative model for separated flows. Furthermore, the cross-comparisons among different CLES implementations have been carried out. Our simulation results are in favor of using the constraint from algebraic RANS model or solving the RANS model equations in the whole domain with a length scale modification according to the idea from DES.
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影响因子：
4.6
作者：
Yipeng Shi;Zuoli Xiao;Shiyi Chen
通讯作者：
Yipeng Shi;Zuoli Xiao;Shiyi Chen
影响因子：
3.4
作者：
M. Manhart;Nikolaus Peller;C. Brun
通讯作者：
M. Manhart;Nikolaus Peller;C. Brun
影响因子：
3.4
作者：
C. Brun;Margareta Petrovan Boiarciuc;M. Haberkorn;P. Comte
通讯作者：
C. Brun;Margareta Petrovan Boiarciuc;M. Haberkorn;P. Comte
DOI：
10.2514/6.2002-427
发表时间：
2002-01
期刊：
--
影响因子：
--
作者：
P. Batten;U. Goldberg;S. Chakravarthy
通讯作者：
P. Batten;U. Goldberg;S. Chakravarthy
DOI：
10.1051/proc:2007016
发表时间：
2007
期刊：
Esaim: Proceedings
影响因子：
--
作者：
S. Šarić;S. Jakirlic;M. Breuer;B. Jaffrézic;G. Deng;Oussama Chikhaoui;J. Fröhlich;D. Terzi;M. Manhart;Nikolaus Peller
通讯作者：
S. Šarić;S. Jakirlic;M. Breuer;B. Jaffrézic;G. Deng;Oussama Chikhaoui;J. Fröhlich;D. Terzi;M. Manhart;Nikolaus Peller