Non-Linearity and Non-Periodicity of a Two-Dimensional Disturbance in Plane Poiseuille Flow

書誌事項

タイトル別名
  • Non Linearity and Non Periodicity of a

この論文をさがす

抄録

By means of the Fourier transform and an amplitude expansion, the Navier-Stokes equation is reduced to a weakly non-linear equation for \ ildeE, the slowly varying complex amplitude of an envelope of a quasi-monochromatic disturbance. The equation retains non-linear terms consisting of the spatial derivative of the amplitude, \ ildeE∂|\ ildeE|2⁄∂x and |\ ildeE|2∂\ ildeE⁄∂x, which have been omitted as higher order terms in the third order analysis deriving the non-linear Schrödinger type equation. The coefficients of these terms are revealed to be much larger than that of \ ildeE|\ ildeE|2. This fact tells us that the behavior of the disturbance is influenced by very weak non-periodicity. Numerical calculations of the amplitude equation are performed in order to examine this behavior.

収録刊行物

被引用文献 (1)*注記

もっと見る

参考文献 (5)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ