Control of oscillatory thermocapillary convection

書誌事項

タイトル別名
  • 温度差マランゴニ対流における振動流の制御

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説明

Possibility to stabilize the oscillatory thermocapillary convection is demonstrated using a proportional feedback control. The feedback control is realized by locally modifying the surface temperature by using the local temperature measured at different locations fed back through a simple control law. The control method was applied in simplified geometries such as the annular configuration and the half-zone for high Prandtl number liquids by means of experiments, numerical simulations, and formulation of a simple model equation system. Successful suppression of the oscillation was obtained especially in the weakly nonlinear regime where the control completely suppresses the oscillations. With a right choice of actuators, even with the local control, it was shown that it is possible to modify the linear and weakly-nonlinear properties of the three-dimensional flow system with linear and weakly nonlinear control.

資料番号: AA0049208015

レポート番号: JAXA-SP-05-012

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詳細情報 詳細情報について

  • CRID
    1050574036195286528
  • NII論文ID
    120006829463
  • NII書誌ID
    AA11984031
  • ISSN
    1349113X
  • Web Site
    http://id.nii.ac.jp/1696/00006191/
  • 本文言語コード
    en
  • 資料種別
    conference paper
  • データソース種別
    • IRDB
    • CiNii Articles

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