湍流相干结构机理研究(Ⅰ)──光滑壁边界层相干结构的物理模型<sup>*</sup>

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湍流相干结构机理研究(Ⅰ)──光滑壁边界层相干结构的物理模型^*

基金项目: * 国家自然科学基金

Shanghai Institute of Applied Mathematics and Mechanics;Shanghai University, Shanghai, 200072

摘要: 本文主要讨论了光滑壁边界层相干结构的特性,建立了这种相干结构的物理模型,从理论上得到慢条宽度、猝发时间等物理量与动量厚度雷诺数的关系,其结果与实验结果^[3'4'5'7]是相吻合的。
- 湍流理论 /
- 相干结构 /
- 慢条宽度 /
- 猝发时间
Abstract: In this paper, based on the discussion of properties of the turbulent coherent structure for smooth boumdary layer a physical model has been established. The widthof slowly-moving streak line and bursting time of coherent structure expressed bymomentum thickness Reynolds mumber of boundary layer layer have been obtained,which are in agreement with The experimental data^[3.4.5.7].
- turbulence theory /
- coherent structure /
- smooth boundary layer /

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