Analytical Modeling of Laser Induced Thermophoretic Velocity and Thermal Diffusivity for Microparticles Suspended in Liquids

Particle transport and manipulation by making a thermalgradient in gaseous media, has been the case of manystudies in the past decades. However, there are limitedstudies concerning liquid as working fluid. In this paper, themigration velocity of micro particles in liquid is presentedanalytically by making a thermal gradient induced via laserbeam. Also a comparison is made between the presentedmodels to assess the validate model in calculation of thermaldiffusivity and thermophoretic velocity, that showedBrenner model is more accurate. The suggested model canbe used as a tool for modeling of thermophoresis and relatedparametric studies, covering a wide range of liquids andparticles.