G311 液柱内温度差マランゴニ対流におけるカオス的挙動

概要

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The three dimensional simulation of the thermocapillary flow in a half-zone liquid bridge of a high Prandtl number (Pr=28) under zero gravity is performed by the finite difference method. After the pulsating and rotating oscillatory flows emerge, the flow exhibits new types of structures such as chaotic and turbulent convections. They are distinguished by applying the Fourier analysis and the pseudo-phase-space reconstruction from the time series of the surface temperature. Furthermore, the correlation dimension is obtained with GP algorithm. The flow at a higher Marangoni number indicates a non-integer dimension.
日本流体力学会の論文
2001-07-31