可压缩壁湍流物理与建模研究进展

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中文摘要：对高速边界层转捩与湍流的理解、建模与控制不但具有广泛的学术兴趣，而且对高速飞行器的设计与节能有至关重要的意义，因为转捩和湍流会急剧增加壁面摩阻和热流。根据Morkovin假设，高速流动具有一些与不可压缩流动本质上相似的特征，但另一方面，由于存在热力学过程、激波、高焓效应等多物理场耦合，与不可压缩流动也有显著区别。本文综述了高速边界层转捩与湍流的物理和建模方面的最新研究进展，其中较大部分内容为湍流研究。为了物理过程描述的完整性，我们首先简要综述了高速流动转捩，主要关注气动加热原理和推迟转捩的被动控制策略。随后，我们总结了近期在湍流平均流向速度和温度的标度率方面的一些令人鼓舞的发现，这些标度率能够用于构建一系列新颖的壁面模型以提高模式精度。此外，作为湍流建模的基础之一，我们还总结了湍流结构方面的研究，尤其关注边界层对数区含能运动的标度率与建模。另外，我们综述了各种用于预测壁湍流的线性模型。尽管湍流通常被认为是高度非线性的，这些线性模型在过去二十年的研究中取得了较大的成功。最后，我们对综述进行总结，并简要展望未来研究。

外文标题：Progress in physical modeling of compressible wall-bounded turbulent flows

外文摘要：Understanding,modeling and control of the high-speed wall-bounded transition and turbulence not only receive wide academic interests but also are vitally important for high-speed vehicle design and energy saving because transition and turbulence can induce significant surface drag and heat transfer.The high-speed flows share some fundamental similarities with the incom-pressible counterparts according to Morkovin's hypothesis,but there are also significant distinctions resulting from multi-physics coupling with thermodynamics,shocks,high-enthalpy effects,and so on.In this paper,the recent advancements on the physics and modeling of high-speed wall-bounded transitional and turbulent flows are reviewed;most parts are covered by turbulence studies.For integrity of the physical process,we first briefly review the high-speed flow transition,with the main focus on aero-dynamic heating mechanisms and passive control strategies for transition delay.Afterward,we summarize recent encouraging findings on turbulent mean flow scaling laws for streamwise velocity and temperature,based on which a series of unique wall models are constructed to improve the simulation accuracy.As one of the foundations for turbulence modeling,the research survey on turbulent structures is also included,with particular focus on the scaling and modeling of energy-containing motions in the logarithmic region of boundary layers.Besides,we review a variety of linear models for predicting wall-bounded turbulence,which have achieved a great success over the last two decades,though turbulence is generally believed to be highly nonlinear.In the end,we conclude the review and outline future works.

外文关键词：

Hypersonic flowsWall-bounded turbulenceTurbulence structuresBoundary-layer transitionWall modeling

作者：

程诚、陈贤亮、朱文凯、史维、傅林

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作者单位：

Department of Mechanical and Aerospace Engineering,The Hong Kong University of Science and Technology,Hong Kong,China

Institute for Advanced Study,The Hong Kong University of Science and Technology,Hong Kong,China

Department of Mathematics,The Hong Kong University of Science and Technology,Hong Kong,China

Center for Ocean Research in Hong Kong and Macau(CORE),The Hong Kong University of Science and Technology,Hong Kong,China

HKUST Shenzhen-Hong Kong Collaborative Innovation Research Institute,Shenzhen 518045,China

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关键词：

Hypersonic flows Wall-bounded turbulence Turbulence structures Boundary-layer transition Wall modeling

基金：

Research Grants Council(RGC)of the Government of Hong Kong Special Administrative Region(HKSAR)with RGC/ECS ProjectRGC/GRF ProjectRGC/STG ProjectGuangdong Basic and Applied Basic Research FoundationGuangdong Province Science and Technology Plan ProjectCenter for Ocean Research in Hong Kong and Macaujoint research center between Laoshan Laboratory and HKUSTProject of Hetao Shenzhen-Hong Kong Science and Technology Innovation Cooperation Zone

项目编号：

2620022216201023STG2/E-605/23-N2022A15150117792023A0505030005HZQB-KCZYB-2020083

出版年：

2024

DOI：

10.1007/s10409-024-23663-x

力学学报(英文版)

CSTPCD

影响因子：0.363

ISSN：0567-7718

年,卷(期)：2024.40(1)

参考文献量258