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首页> 美国政府科技报告 >Experimental study of thermocapillary flows in a thin liquid layer with heat fluxes imposed on the free surface
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Experimental study of thermocapillary flows in a thin liquid layer with heat fluxes imposed on the free surface

机译：热通量施加在自由表面上的薄液层热毛细管流动的实验研究

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To study thermocapillary flows in a two-dimensional thin liquid layer with heat fluxes imposed on the free surface experimentally, a long tray configuration was employed to simulate the infinite layer. The surface temperature distribution due to thermocapillary convective for different flow regimes was measured and compared with theoretical predictions. A short tray configuration was also employed to study the end wall effects (insulating or conducting). The results show that for a strong convection flow with an insulating wall as the boundary the surface temperature distribution became quite uniform. Consequently, the thermocapillary driving force was greatly reduced. On the other hand, a strong fluid motion always existed adjacent to the conducting wall because of the large surface temperature gradient near the wall.

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