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Theory of thermophoresis of a spherical particle embedded in a micropolar fluid

机译：微柱液中嵌入球颗粒的热孔理论

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摘要

Analytical investigations are considered for the related problems of thermophoresis, photophoresis and thermophoresis with chemical reactions of a spherical aerosol particle embedded in a gaseous micropolar medium. The Knudsen number is assumed to be in the slip-flow regime. Viscous and gyrational dissipations are ignored in the energy equation. At the surface of the particle, a thermal stress slip and the creep slip are considered in the analysis of motion. Expressions for thermophoretic and photophoretic velocities and forces are obtained as functions of the micropolarity parameter characterizing the micropolar medium and the thermal properties of the medium and particle. Results of the effect of the chemical reaction within the particle on its thermophoresis velocity are presented for various distributions of the composition-dependent factor or heat generation parameter of the chemical reaction as well as the relative thermal and surface properties of the aerosol spherical particle. The corresponding limiting cases of the classical viscous fluids are obtained. (C) 2019 Elsevier B.V. All rights reserved.
机译：考虑分析研究，用于热孔，光学素质和热孔的相关问题，具有嵌入在气态微柱介质中的球形气溶胶粒子的化学反应。假设knudsen号码是在滑动状态下。在能量方程中忽略了粘性和谐振耗散。在颗粒表面，在运动分析中考虑了热应力滑动和蠕变滑动。热渗透和光学速度和力的表达是作为表征微柱培养基的微极极参数的功能和介质和颗粒的热性质。提出了化学反应组成依赖性因子或发热参数的各种分布的颗粒内化学反应对其热孔速度的影响结果以及气溶胶球形颗粒的相对热和表面性质。获得了经典粘性流体的相应限制情况。 （c）2019 Elsevier B.v.保留所有权利。

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