Accession Number:

ADA446006

Title:

Diffusiophoresis of a Spherical Volatile Particle

Descriptive Note:

Conference paper

Corporate Author:

KYOTO UNIV (JAPAN) DEPT OF AERONAUTICS AND ASTRONAUTICS

Report Date:

2005-07-13

Pagination or Media Count:

7.0

Abstract:

A spherical condensed phase volatile particle is placed in an infinite expanse of a binary mixture consisting of the vapor of the condensed phase and another noncondensable gas. The mixture is assumed to be at rest with uniform pressure and temperature at infinity. However, the vapor and the noncondensable gas have small uniform density or concentration gradients of the same magnitude but in the opposite direction. The flows of both components around the particle are analyzed numerically by a finite-difference method on the basis of a model Boltzmann equation for gas mixtures, and the force acting on the particle diffusiophoretic force is obtained accurately for a wide range of the Knudsen number.

Subject Categories:

  • Physical Chemistry
  • Theoretical Mathematics
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE