Theoretical Analysis for Unsteady Boundary Layer on a Linearly Retarded Semi-Infinite Flat Plate.

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  • 線形減速半無限平板上の非定常境界層に関する理論解析的研究
  • センケイ ゲンソク ハンムゲン ヘイバンジョウ ノ ヒテイジョウ キョウカイソ

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Abstract

As the first step in systematic research on the decelerating unsteady boundary layers, the fundamental problem of the unsteady laminar boundary layer on a linearly retarded semi-infinite flat plate has been analyzed theoretically. Precise solutions of the flow characteristics are obtained by means of a series expansion technique and a numerical analysis. In addition, an original semi-quantitative "viscous diffusion theory" has been developed, and the physical mechanism and structure of flow behaviors in the boundary layer, which cannot be explained well by any existing numerical method, have been analyzed phenomenally and are clarified satisfactorily by this new theory.

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