| 用马尔可夫随机过程描述粒子紊动扩散的模式 |
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| 引用本文： | 张德辉.用马尔可夫随机过程描述粒子紊动扩散的模式[J].武汉大学学报(工学版),1990(Z1). |
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| 作者姓名： | 张德辉 |
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| 作者单位： | 武汉水利电力学院水利水电科学研究所 |
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| 摘 要： | 本文通过把紊流场中微小粒子的扩散运动视为分子运动在尺度上的放大和变形的假定,运用马尔可夫随机过程理论,给出了描述一般紊流场中微小粒子声动扩散的模式及连续点源条件下微小粒子扩散浓度分布的表达式。并对粒子的扩散参数进行了讨论。
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| 关 键 词： | 多相流 湍流扩散 扩散系数 |
A Pattern of Turbulent Diffusion of Particles Described by Markovian Process |
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| Zhang Dehui.A Pattern of Turbulent Diffusion of Particles Described by Markovian Process[J].Engineering Journal of Wuhan University,1990(Z1). |
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| Authors: | Zhang Dehui |
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| Affiliation: | Zhang Dehui |
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| Abstract: | The turbulent movement of particles which move in a turbulent flow is regarded as enlargement and deformation of molecules diffusion movement about size. In this paper the formula of the concentration distribution of particles has been derived by employing the method of the Markovian stochastic differential equation and the turbulent diffusion coefficient of particles is discussed. |
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| Keywords: | multiphase flow Turbulent diffusions diffusion coeffcienst |
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