Effect of Surface Forces on the Gas Flow in Nanosize Capillaries
Abstract
The flow of gas in ultrafine capillary under the action of temperature gradient is considered with allowance for the action of surface forces. It is shown that the presence of surface forces considerably increases the effect of thermal transpiration compared to the classical value determined in a free molecular regime of gas flow. The coefficient responsible for the mechanocaloric effect for the case of gas flow under the pressure gradient was also determined using Onsager relation for the kinetic coefficients calculated with account of the effect of surface forces
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 13, 2005
- Accession Number
- ADA446042
Entities
People
- V. I. Roldughin
- V. M. Zhdanov
Organizations
- Russian Academy of Sciences