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首页> 外文期刊>International Journal of Thermal Sciences >On thermocapillary rings from radioactive particles suspended at the surface of liquids
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On thermocapillary rings from radioactive particles suspended at the surface of liquids

机译：从液体表面悬浮的放射性颗粒的热量捕环

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摘要

Thermocapillary motion and its significance with regard the thermal behavior of heat sources and with particular reference to radioactive particles suspended at the surface of fluids is discussed. It is shown that because the radial temperature profile surrounding the hot particle, a thermocapillary flow is induced with the viscous liquid flowing outwards from the particle and then with a drag force propelling the surrounding suspended material away from the hot particle with the formation of a diffusive ring. Utilizing a simplified physical model, it was found a power-law for the concentration of particles surrounding the hot particle. The formation of such a ring may be important as a visual technique to detect or unveil the presence of radioactive particles or as a new method for detection under controlled conditions. Computational Fluid Dynamics (CFD) simulations were performed which agree qualitatively and quantitatively with the analytical model.
机译：讨论了热量的热量运动及其在热源的热行为以及特别参考悬浮在流体表面上的放射性颗粒的重要性。 结果表明，由于热颗粒周围的径向温度曲线，用从颗粒向外流动的粘性液体诱导热毛细血管流动，然后用拖曳力推动周围悬浮材料远离热颗粒的衍射率 戒指。 利用简化的物理模型，找到了热颗粒围绕颗粒浓度的动力法。 这种环的形成可能是视觉技术的重要性，以检测或揭示放射性颗粒的存在或作为在受控条件下检测的新方法。 进行计算流体动力学（CFD）模拟，其与分析模型定性和定量同意。

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