Scale-Invariance and Turbulence Models for Large-Eddy Simulation
Scale-Invariance and Turbulence Models for Large-Eddy Simulation
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DOI：
10.1146/annurev.fluid.32.1.1
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发表时间：
2000
影响因子：
27.7
通讯作者：
C. Meneveau;J. Katz
中科院分区：
文献类型：
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作者：
C. Meneveau;J. Katz
湍流运动的小尺度和大尺度之间的关系在湍流的大涡模拟中是非常有趣的，其中小尺度没有明确解决，必须建模。本文综述了基于惯性范围内高雷诺数湍流尺度不变性的模型。审查开始与Smagorinsky模型，但重点是动态和相似的子网格模型，并评估这些模型如何再现大尺度物理的小尺度的真实影响，以及它们在数值模拟中的表现。各种标准来评估模型的性能进行了讨论，包括所谓的后验和先验研究的基础上直接数值模拟和实验数据。问题主要是在规范，不可压缩流的背景下，但扩展标量运输，可压缩，反应流也提到。简要介绍了最近的其他建模方法。
▪ Abstract Relationships between small and large scales of motion in turbulent flows are of much interest in large-eddy simulation of turbulence, in which small scales are not explicitly resolved and must be modeled. This paper reviews models that are based on scale-invariance properties of high-Reynolds-number turbulence in the inertial range. The review starts with the Smagorinsky model, but the focus is on dynamic and similarity subgrid models and on evaluating how well these models reproduce the true impact of the small scales on large-scale physics and how they perform in numerical simulations. Various criteria to evaluate the model performance are discussed, including the so-called a posteriori and a priori studies based on direct numerical simulation and experimental data. Issues are addressed mainly in the context of canonical, incompressible flows, but extensions to scalar-transport, compressible, and reacting flows are also mentioned. Other recent modeling approaches are briefly introduced.