Features of diffusion-and photophoretic motion of largeweakly evaporating droplet at small relative temperature differences

In the quasistationary approximation when the Reynolds and Pecle many smaller units solved the problem of the influence of motion of the medium (account of convective members in the equations of diffusion and thermal conductivity) diffusion-and photophoresis of the large evaporating droplets loosely of spherical shape, inside which there are heat sources in binary viscous gaseous medium. Analytical formulas for the force and velocity of the droplet motion are obtained, which take into account not only thermal and diffusion sliding, but also the dependence of the surface tension coefficient on temperature. Qualitative assessments have shown that the movement of the medium does not affect diffusiophoresis.