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Two-Dimensional Numerical Simulation of Thermocapillary Convection in Annular Two-Layer System

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Abstract

In order to understand the characteristics of thermocapillary convection in the annular two-layer systems, a set of two-dimensional numerical simulations was carried out using the finite-volume method for the system of gallium arsenide and boron oxide with the aspect ratio 4, in a differentially heated annular pool with the outer heated cylinder and the inner cooled cylinder. The results show that liquid encapsulation can effectively suppress thermocapillary convection in the melt. When the buoyancy is considered, thermocapillary convection is reduced in liquid encapsulation, but enhanced in the melt.

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Authors and Affiliations

  1. College of Power Engineering, Chongqing University, Chongqing, 400044, China

    You-Rong Li, Wen-Jie Zhang & Shuang-Cheng Wang

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  1. You-Rong Li
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  2. Wen-Jie Zhang
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  3. Shuang-Cheng Wang
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Correspondence to You-Rong Li.

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Li, YR., Zhang, WJ. & Wang, SC. Two-Dimensional Numerical Simulation of Thermocapillary Convection in Annular Two-Layer System. Microgravity Sci. Technol 20, 313–317 (2008). https://doi.org/10.1007/s12217-008-9020-9

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  • DOI: https://doi.org/10.1007/s12217-008-9020-9

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