Abstract

A subsonic flow of a viscous compressible fluid in a two-dimensional channel with small periodic or localized irregularities on the walls for large Reynolds numbers is considered. A formal asymptotic solution with double-deck structure of the boundary layer is constructed. A nontrivial time hierarchy is discovered in the decks. An analysis of the scales of irregularities at which the double-deck structure exists is performed.

中文翻译：

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壁面小不规则通道内可压缩流问题中边界层的非平稳双层结构

摘要

考虑了二维通道中粘性可压缩流体的亚音速流动，对于大雷诺数，在壁上具有小的周期性或局部不规则性。构造了边界层双层结构的形式渐近解。在甲板上发现了一个重要的时间层次结构。对双层结构存在的不规则尺度进行了分析。