Abstract

A mathematical model for viscous gas flow simulation with time scales bounded by the characteristic time between molecular collisions is considered. This approach is a variant of the quasi-gasdynamic system of equations, which is based on the relationship between the kinetic and macroscopic descriptions of continuous medium motion. Based on the presented model, a numerical algorithm is constructed for modeling viscous compressible gas flows. As an example, the algorithm is used to study some features of inhomogeneous flow around a blunt body.

中文翻译：

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连续介质力学中问题详细描述的限制以及粘性气流模拟的数值算法

摘要

考虑了粘性气体流动的数学模型，其时间尺度受分子碰撞之间的特征时间限制。这种方法是准气动力学方程组的一种变体，它基于连续介质运动的动力学描述与宏观描述之间的关系。基于提出的模型，构造了用于对粘性可压缩气体流进行建模的数值算法。例如，该算法用于研究钝体周围非均匀流动的某些特征。