| 湍流一般机理及其应用 |
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| 引用本文： | 杨文熊.湍流一般机理及其应用[J].力学进展,1992,22(4):489-495. |
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| 作者姓名： | 杨文熊 |
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| 作者单位： | 上海交通大学工程力学系 |
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| 基金项目： | 上海交通大学科研处科技发展基金 |
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| 摘 要： | 本文综述了湍流机理发展中最重要的一些文章,包括:Brown-Roshko的混合剪切层中大尺度涡的发展;Perry和Chong的湍流边界层中A形涡结构的湍流机理;以及笔者提出的关于3维湍流场中涡结构的涡量脉动对流和扩散并存的一般机理。在一般机理基础上建立了判别流场的准则,列举了在固壁边界附近的猝发现象并展望它的未来应用。
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| 关 键 词： | 湍流 涡量流 涡对流和扩散 猝发现象 |
GENERAL MECHANISM OF TURBULENCE AND ITS APPLICATIONS |
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| Yang Wen-xiong.GENERAL MECHANISM OF TURBULENCE AND ITS APPLICATIONS[J].Advances in Mechanics,1992,22(4):489-495. |
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| Authors: | Yang Wen-xiong |
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| Institution: | Yang Wen-xiongDepartment of Engineering Mechanics,Shanghai Jiao Tong University |
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| Abstract: | In this paper, some important mechanisms of turbulence proposed in literature are reviewed, which include Brown-Roshko's large-scale vortex structure developed in the mixing shear flow, Perry and Chong's 'A' vortex in turbulent boundary layer and the author's general mechanism of turbulence in 3-dimensional turbulent flow with respect to the vortex structure of pulsative vorticity convection and diffusion. The criterion is proposed for distinguishing the flow patterns. The bursting phenomenon near the wall is discussed, together with its future applications. |
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| Keywords: | turbulence vorticity flux vorticity convection and diffusion bursting phenomenon |
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