A stabilized finite element method for computing turbulence
A stabilized finite element method for computing turbulence
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DOI：
10.1016/s0045-7825(98)00301-6
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发表时间：
1999-05-25
影响因子：
7.2
通讯作者：
Jansen, KE
中科院分区：
文献类型：
--
作者：
Jansen, KE
对于许多流动，雷诺平均纳维-斯托克斯模拟(RANSS)技术不能给出可接受的流动描述。在这些情况下，需要对湍流进行更详细的模拟。大涡模拟(LES)就是这样一种详细的模拟技术，它已经成熟到可以应用于复杂流动的地步。从历史上看，这些模拟都是用结构化网格进行的，这有两个主要的困难：扩展到更高的雷诺数导致了不切实际的网格点数量，以及大多数现实世界的流动很难用结构化网格来几何表示。非结构化网格方法提供了一种摆脱这两种限制的方法。在这里，我们描述了一种大规模并行、稳定的大涡模拟有限元方法的发展和验证。(C)1999 Elsevier Science S.A.保留所有权利。
For many flows, Reynold-averaged Navier-Stokes simulation (RANSS) techniques do not give an acceptable description of the flow. In these cases a more detailed simulation of the turbulence is required. One such detailed simulation technique, large-eddy simulation (LES) has matured to the point of application to complex flows. Historically, these simulations have been carried out with structured grids which suffer from two major difficulties: the extension to higher Reynolds numbers leads to an impractical number of grid points, and most real world flows are rather difficult to represent geometrically with structured grids. Unstructured-grid methods offer a release from both of these constraints. Herein, we describe the development and validation of a massively parallel, stabilized finite element method for LES. (C) 1999 Elsevier Science S.A. All rights reserved.