高プラントル数流体液柱内温度差マランゴニ対流における各種流れ場の発現(熱工学,内燃機関,動力など)

概要

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Thermocapillary-driven convection in a half-zone liquid bridge of high-Prandtl-number fluid was investigated experimentally. It is widely known that the flow field in the liquid bridge exhibits a transition from two-dimensional steady flow to three-dimensional 'oscillatory' one at a critical temperature difference. In this study, special attention was paid upon the flow structures far beyond the critical condition. Types of the induced flows were categorized into several regimes mainly according to the suspended particle motion in the bridge and the surface temperature variation. Chaotic and turbulent flows were realized in this configuration. The flow regimes were analyzed by applying the pseudo-phase-space reconstruction from the time series of the surface temperature, and the evaluations of the correlation dimension and the maximum Lyapunov exponent.
一般社団法人日本機械学会の論文
2003-06-25