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首页> 外文期刊>Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology >Numerical investigation of mixing layers using the discrete vortex method with the diffusion velocity model
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Numerical investigation of mixing layers using the discrete vortex method with the diffusion velocity model

机译：离散涡与扩散速度模型混合层的数值研究。

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摘要

The evolution of large vor tex structures and the nondimensional statistical quantities in a two-dimensional mixing layer are investigated by the discrete vortex method, in which viscous diffusion is treated by the diffusion velocity method Results indicate that continuous amalgamation among the large vortex structures is the primary factor leading to growth of the mixing layer. They agree well with experiments and show a strong capability to discover the self-similar property of mixing layers. Results also indicate that the over-estimation of root-mean-square velocity v' is attributed to the effect of three-dimensionality in actual flows, and is neglected by the two-dimensional discrete vortex method. [References: 20]
机译：用离散涡旋方法研究了二维混合层中大涡旋结构的演化和无量纲统计量，其中用扩散速度法处理了粘性扩散。结果表明，大涡旋结构之间的连续融合是导致混合层增长的主要因素。它们与实验非常吻合，并且显示出发现混合层自相似特性的强大能力。结果还表明，均方根速度v'的高估归因于实际流动中的三维效应，而二维离散涡旋法则忽略了这一点。 [参考：20]

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