A note on simultaneous unsteady state diffusion and heat conduction in the absence of the Soret Effect

✍ Scribed by J. Szekely

• Publisher: Elsevier Science
• Year: 1965
• Tongue: English
• Weight: 427 KB
• Volume: 20
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(65)80108-7

✦ Synopsis

Simultaneous unsteady state diffusion and heat conduction in the absence of the Soret Effect are discussed. Under these conditions the problem reduces to diffusion with a variable diffusion coefficient which is produced by the non-uniformity of the temperature field.

It is shown that the variability of temperature is unlikely to be important for most solids and liquids, however in the case of gases it may have a significant effect on both the flux and the concentration profile.