Anisotropic mesh adaptation technique for viscous flow simulation

Anisotropic mesh adaptation technique for viscous flow simulation
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用于粘性流模拟的各向异性网格自适应技术

DOI:
10.1515/jnma.2001.1
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发表时间:
2001
期刊:
--
影响因子:
--
通讯作者:
V. Dolejší
V. Dolejší
中科院分区:
--
文献类型:
--
作者:
V. Dolejší

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摘要本文提出了一种适用于非结构三角形网格的自适应方法,该方法是专门为粘性可压缩流动的数值模拟而发展的。该方法使用在[Dolejši,Computing and Visualization in Science 1:165-178,1998,Dolejši and Felcman,Numer. Meth.部分Diff.方程],并对粘性高速流的物理性质作了一些改进。我们总结了AMA方法的几何解释,我们描述了数值求解器,它使用有限体积和有限元方法相结合。我们表明,直接应用AMA技术是不适合的粘性流动模拟,我们提出了一些修改,即捕捉边界层和尾流。此外,还提出了一种增加三角剖分规则性的附加平滑技术。
Abstract We present an efficient adaptive method for unstructured triangular meshes especially developed for the numerical simulation of viscous compressible flow. Thismethod uses the anisotropic mesh adaptation (AMA) technique introduced in [Dolejši, Computing and Visualization in Science 1: 165–178, 1998, Dolejši and Felcman, Numer. Meth. Part. Diff. Equations] with some additional improvement reflecting physical properties of viscous high speed flow. We summarize the AMA method with its geometrical interpretation and we describe the numerical solver, which uses the combination of finite volume and finite element methods. We show that the direct application of AMA technique is not suitable for the viscous flow simulation and we propose some modifications, namely for capturing boundary layers and a wake. Moreover an additional smoothing technique increasing the regularity of the triangulation is presented.
《极端条件下的XMCD研究——巡回电子系统中的磁相变——》(特邀)
DOI: --
发表时间: 2007
期刊:
影响因子: --
作者:
H.;Maruyama
通讯作者: Maruyama