Heat transfer in the critical boundary layer
Abstract
In near-critical liquids, thermal advection enhances the mass and heat transfer; near a boundary the advective heat conductivity depends on the distance from the boundary. We study the temperature profile in the boundary layer of a near-critical liquid with a temperature gradient. The thermal resistance of this critical boundary layer increases near the critical point; the difference δT between the actual boundary temperature and the one obtained by linear extrapolation from the bulk yields a scaling law δT = const × ( T- Tc) 0.08.
- Publication:
-
Physics Letters A
- Pub Date:
- July 1998
- DOI:
- 10.1016/S0375-9601(98)00249-7
- Bibcode:
- 1998PhLA..244..185P
- Keywords:
-
- CRITICAL PHENOMENA;
- NON-EQUILIBRIUM