So a mathematical model is built by introducing two parameters to link microcosm and macroscale while laminar flow model is still the reaction model of microcosmic reaction.
故本文引入两个参数，建立了一个可行的计算数学模型，将层状扩散模型这个微观过程与宏观反应联系在一起。
According to the fractal geometry theory and the non-compressed viscous fluid laminar flow theory, the leakage model of metallic gasket based on fractal parameter was established.
依据分形几何理论，结合不可压缩粘性流体层流流动理论，建立基于分形参数的金属垫片泄漏模型，该模型揭示了泄漏率与密封表面形貌之间的关系。
The model of laminar flow in tubes in rolling motion is established. The dimensionless correlation of velocity is derived, and the correlation of frictional resistance coefficient is also obtained.
建立了摇摆条件下圆管内的层流流动模型，推导出无量纲化的速度表达式，得到摩擦阻力系数关系式。
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