Ternary diffusion formulation for diffusiophoresis

✍ Scribed by Joseph A. Shaeiwitz; W.Jay Lechnick

• Book ID: 103008683
• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 808 KB
• Volume: 39
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(84)85048-4

✦ Synopsis

Abatract-A

ternary diffusion formulation for diffusiophoresis, the migration of a particle in a solute gradient, is suggested. The formulation, derived from irreversible thermodynamics, contains both the chemiphoretic and diffusion potential contributions in the L),, "cross-term" diffusivity. The ternary diffusion formulation allows both measurement of the magnitude of diffusiophoresis and straightforward modeling of the effect of diffusiophoresis in any convective transport situation. Measured coefficients of diffusiophoresis agree reasonably well with previous electrohydrodynamk theories.