Collision Dynamics in Dissipative Systems

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説明

Spatially localized patterns are ubiquitous such as chemical blobs, discharge patterns, morphological spot, and binary convection cells. When they are moving in space, it is unavoidable that they collide each other, interact strongly and emit various outputs depending on incident angle and parameters. Moving localized spots in dissipative systems have their own internal hidden dynamics. Here "hidden" means that various types of instabilities are not visible when they are isolated, but those ones come out from the hidden state when they collide with each other or encounter defects when the propagating media is heterogeneous. They display rich dynamics such as rebound, annihilation, coalescence, and splitting through the collision process. A new approach is presented to clarify an underlying structure behind those dynamics. A key ingredient lies in a network of unstable solutions, which plays a crucial role to understand the input-output relation for collisional process. A remarkable thing is that there appears a time-periodic rotational motion as an output for the case of oblique collision. This approach is also useful to understand the dynamics of traveling spots in heterogeneous media.

収録刊行物

  • Theoretical and Applied Mechanics Japan

    Theoretical and Applied Mechanics Japan 59 (0), 13-25, 2011

    日本学術会議 「機械工学委員会・土木工学・建築学委員会合同IUTAM分科会」

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詳細情報 詳細情報について

  • CRID
    1390282680186177408
  • NII論文ID
    130004463762
  • DOI
    10.11345/nctam.59.13
  • ISSN
    13494244
    13480693
  • 本文言語コード
    en
  • 資料種別
    journal article
  • データソース種別
    • JaLC
    • CiNii Articles
    • KAKEN
  • 抄録ライセンスフラグ
    使用不可

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