Abstract:
The stationary motion of a large spherical aerosol particle in the external field of a temperature gradient in zero gravity is theoretically described using the Stokes approximation and the assumption that the average temperature of the particle surface differs considerably from the temperature of the surrounding gaseous medium. The gas dynamics equations are solved taking into account the power-law temperature dependence of the molecular transport coefficients (viscosity, thermal conductivity) and the density of the gaseous medium. Numerical estimates show that the dependence of the thermophoretic force and velocity on the average temperature of the particle surface is nonlinear.
Keywords:
thermophoresis of heated spherical particles, motion of heated spherical particles in a gradient temperature field.
Citation:
N. V. Malay, A. V. Limanskaya, E. R. Shchukin, “Thermophoretic motion of large heated aerosol spherical particles”, Prikl. Mekh. Tekh. Fiz., 57:2 (2016), 164–171; J. Appl. Mech. Tech. Phys., 57:2 (2016), 337–343
This publication is cited in the following 5 articles:
N. V. Malai, P. V. Sohan, Yu. I. Shostak, “Features of the photophoretic motion of an evaporating droplet in a viscous non-isothermal binary gas medium”, Prikladnaâ matematika i mehanika, 88:1 (2024), 79
N. V. Malay, E. R. Shchukin, Yu. I. Schostak, “On the influence of heat transfer on the photophoresis of a heated large aerosol particle”, High Temperature, 60:6 (2022), 797–803
V. A. Arkhipov, S. A. Basalaev, K. G. Perfilieva, S. N. Polenchuk, A. S. Usanina, “An experimental study of the hydrodynamic drag coefficient of a cooled hard sphere at small Reynolds numbers”, Tech. Phys. Lett., 47:4 (2021), 317–320
Amir Abbas, Muhammad Ashraf, Yu-Ming Chu, Saqib Zia, Ilyas Khan, Kottakkaran Sooppy Nisar, “Computational Study of the Coupled Mechanism of Thermophoretic Transportation and Mixed Convection Flow around the Surface of a Sphere”, Molecules, 25:11 (2020), 2694
N. V. Malay, E. R. Shchukin, “Photo- and thermophoresis of heated medium-size spherical aerosol particles”, Tech. Phys., 64:4 (2019), 458–464