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Pattern formation of drops in thermocapillary migration

机译:热毛细血管迁移中液滴的模式形成

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摘要

The behavior of a drop cloud in thermocapillary motion in zero gravity is examined for both mono-dispersed and poly-dispersed cases. Numerical simulations of the thermocapillary motion of two- and three-dimensional fully deformable light drops are presented. The Navier-Stokes equations coupled with the energy conservation equation are solved by a front-tracking/finite-difference method. The material properties of the drop fluid and the ambient fluid are different, and the interfacial tension depends on the temperature. At moderate Reynolds (Re) and Marangoni (Ma) numbers, the results show that drops form layers nearly perpendicular to the temperature gradient.
机译:对于单分散和多分散情况,都研究了零重力下热毛细运动中液滴云的行为。提出了二维和三维完全变形光滴热毛细运动的数值模拟。 Navier-Stokes方程和能量守恒方程通过前跟踪/有限差分法求解。液滴流体和环境流体的材料特性不同,并且界面张力取决于温度。结果表明,在中等雷诺数(Re)和马兰戈尼(Ma)数下,液滴形成的层几乎垂直于温度梯度。

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