| 号称经典物理留下的世纪难题“湍流问题”的实质是什么？ |
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| 引用本文： | 周恒,张涵信.号称经典物理留下的世纪难题“湍流问题”的实质是什么？[J].中国科学:物理学 力学 天文学,2012(1):1-5. |
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| 作者姓名： | 周恒 张涵信 |
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| 作者单位： | [1]天津大学机械工程学院,天津300072 [2]国家计算流体力学实验室,中国空气动力研究与发展中心,北京100191 |
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| 摘 要： | 一直以来,湍流都被认为是经典物理留下的世纪难题,因而也被认为是一个重大的基础科学问题.本文简单回顾湍流研究历史,分析了均匀各向同性湍流的研究和真实湍流的研究间为何存在鸿沟.为何前者不能解决真实湍流问题,而后者则是今后应重点开展的湍流基础研究,和如何逐步解决真实的湍流问题.在结论中提出了今后湍流研究中值得注意的几个方面.
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| 关 键 词： | 壁湍流 边界层湍流 相干结构 均匀各向同性湍流 |
What is the essence of the so-called century lasting difficult problem in classic physics,the＂problem of turbulence＂？ |
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| ZHOU Heng,＊ ＆ZHANG HanXin.What is the essence of the so-called century lasting difficult problem in classic physics,the＂problem of turbulence＂？[J].Scientia Sinica Pysica,Mechanica & Astronomica,2012(1):1-5. |
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| Authors: | ZHOU Heng ＊ ＆ZHANG HanXin |
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| Institution: | 1School of Mechanical Engineering,Tianjin University,Tianjin 300072,China;2National Laboratory for Computational Fluid Dynamics,China Aerodynamics Research＆Development Center,Beijing 100191,China; |
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| Abstract: | Turbulence has always been viewed as a century lasting difficult problem in classic physics,hence it is also viewed as a very important basic scientific problem.In this paper,starting from a brief review of the history of turbulence research,we analyze why there seems is a gap separating researches on homogeneous isotropic turbulence and researches on real turbulence,why the former did not make substantial contribution to solving problems of real turbulence,while the latter should be the main focus of the further basic research of turbulence,and how the real turbulence problem can be solved gradually.In conclusions,we list several points worth attention in the turbulence research. |
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| Keywords: | wall bounded turbulence boundary layer turbulence coherent structure homogeneous isotropic turbulence |
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