Non-Linearity and Non-Periodicity of a Two-Dimensional Disturbance in Plane Poiseuille Flow
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- Ikeda Motoyoshi
- Institute of Space and Aeronautical Science, University of Tokyo
書誌事項
- タイトル別名
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- Non Linearity and Non Periodicity of a
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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
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 42 (5), 1764-1771, 1977
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390282679167338752
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- NII論文ID
- 110001963369
- 210000086445
- 130003895240
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- NII書誌ID
- AA00704814
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- BIBCODE
- 1977JPSJ...42.1764I
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 1824259
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可