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ISSN オンライン: 2642-0554

OSCILLATORY, CHAOTIC AND TURBULENT THERMOCAPILLARY CONVECTIONS IN A HALF-ZONE LIQUID BRIDGE

Hiroshi Kawamura
Department of Mechanical Engineering Faculty of Science and Technology Science University of Tokyo Noda-shi, Chiba 278 Japan

Ichiro Ueno
Department of Mechanical Engineering, Faculty Science & Technology Tokyo University of Science 2641 Yamazaki, Noda, Chiba 278-8510, Japan

Shiho Tanaka
Dept. Mech. Eng., Fac. Sci. & Tech., Science University of Tokyo 2641 Yamazaki, Noda-shi, Chiba 278-8510, JAPAN

Dai Nagano
Dept. Mech. Eng., Fac. Sci. & Tech., Science University of Tokyo 2641 Yamazaki, Noda-shi, Chiba 278-8510, JAPAN

要約

Thermocapillary-driven convection in a half-zone liquid bridge was investigated experimentally. Special attention was paid upon the flow structures far beyond the critical condition. The authors categorized the induced flows into several regimes mainly by the suspended particle motion in the bridge and the surface temperature variation. Chaotic and turbulent flows were realized in this configuration. They were distinguished by applying the pseudo-phase-space reconstruction from the time series of the surface temperature.