64 research outputs found
Motion of a heated spheroidal particle at low Reynolds numbers
The problem of motion of a uniformly heated spheroidal hydrosol particle is solved. An expression which allows estimation of the resistance force of the spheroidally shaped solid hydrosol particle at arbitrary differences between the temperatures of the particle surface and the region at a distance from it is obtained with account for the dependence of the viscosity on the temperatureyesBS
Flow of a liquid about a nonuniformly heated droplet with arbitrary temperature differences in its vicinity
The problem of flow of a liquid about a nonuniformly heated droplet at small Reynolds numbers is solved analytically with allowance for the effect of medium motion with arbitrary temperature differences between the particle surface and the region away from it and the temperature dependence of the viscosity, represented in the form of a series. It is shown that in the approximation considered the nonuniformly heated droplet retains a spherical shapeyesBelgorod State Universit
On the flow of a viscous liquid around a heated spheroidal particle
An expression is derived for the viscous drag of a spheroidal particle whose temperature differs from that of the carrier liquid. Calculations are performed for the case where the temperature dependence of the liquid viscosity may be represented by an exponential poweryesBelgorod State Universit
On the thermophoretic motion of a heated spherical drop in a viscous liquid
Expressions for the force and velocity of the thermophoretic motion of a spherical drop in a viscous liquid are derived for arbitrary temperature differences between the surface of the drop and regions away from it. The temperature dependence of the viscosity is taken into account in the form of an exponential–power seriesyesBelgorod State Universit
On the motion of a uniformly heated drop in a viscous liquid under gravity
The motion of a uniformly heated spherical drop under gravity is theoretically studied within the Stokes approximation. The Stokes and Hadamard-Rybchinsky formulas are generalized so that the temperature dependence of the viscosity can be found in a wide temperature rangeyesBS
Boundary value problem of mass and heat transfer of an evaporating spherical droplet
Approximate solutions of stationary diffusion and thermal conductivity equations are obtained for the power-law dependence of the molecular transfer coefficients (thermal conductivity, diffusion) and the density of a binary viscous non-isothermal gas medium on temperatur
On the thermophoresis of a spheroidal solid aerosol particle
The steady motion of a spheroidal aerosol particle with inner nonuniformly distributed heat sources (sinks) that is placed in an external temperature gradient is theoretically studied in the Stokes approximationyesBS
Influence of internal heat release on the thermophoresis of a solid spheroidally shaped aerosol particle
The thermophoresis of a spheroidally shaped aerosol particle at small relative temperature differences has been considered with allowance for internal heat sources nonuniformly distributed in its volumeyesBS
Investigation of boundary-value problem for stationary system of equations of viscous non-isothermal fluid
In the Stokes approximation at small Reynolds and Peclet numbers, we obtain a solution to the boundary-value problem of flow around of particles of spherical shape for stationary system of equations of a viscous non-isothermal fluid comprising a linearized by speed Navier-Stokes equation system and the equation of heat transfer given an exponential-power law of dependence of viscosity of fluid on temperatur
On the influence of motion of the medium on the photophoresis of a spheroidal solid aerosol particle
This paper considers the influence of motion of the medium (account of convective terms in the heat conduction equations) on the photophoresis of a large aerosol spheroidal particle at small relative temperature drops in its vicinity. It has been shown that at a fixed ratio of semiaxes with increasing intensity of the incident radiation the total contribution of the medium motion leads to a monotonic decrease in the rate of photophoresis, whose degree depends on the equatorial radius of the spheroidyesBelgorod State Universit
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