Comments on mesoscopic continuum physics: evolution equation for the distribution function and open questions
Comments on mesoscopic continuum physics: evolution equation for the distribution function and open questions
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介观连续介质物理评论：分布函数的演化方程和开放问题
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
J. Engelbrecht
中科院分区：
文献类型：
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作者：
H. Herrmann;J. Engelbrecht
在介观连续介质物理中，引入介观分布函数是很常见的。通常还会推导出该分布函数的演化方程。然而，质量的介观平衡方程和分布函数的演化方程并不是独立的。我们结合演化方程讨论介观天平的不同使用情况。此外，虚拟边界的问题被发现，指的是尽管宏观区域是连续的，但介观描述中的区域变得不连续的情况。
In mesoscopic continuum physics it is common to introduce a mesoscopic distribution function. Often also an evolution equation is derived for this distribution function. The mesoscopic balance equations for mass and the evolution equation for the distribution function, however, are not independent. We discuss different usage cases of mesoscopic balances in connection with the evolution equation. Furthermore, the problem of virtual boundaries is discovered, referring to cases where the domain in the mesoscopic description becomes non-contiguous despite the macroscopic domain being contiguous.