Analysis of the process governing the sudden thermal contact between two solids - Application to the determination of effusivity
Abstract
An analysis is made of the process governing the thermal accommodation between two solids put in contact, initially at different temperatures. By means of a mathematical model the insuffiency of the notion of the thermal contact resistance is demonstrated for the very first instant after the rupture of the thermal equilibrium. An experimental apparatus allowing a full automatized measurement of the diffusivity is described. Results are presented and discussed. Various applications are considered.
- Publication:
-
Heat transfer 1974; Proceedings of the Fifth International Conference, Volume 1
- Pub Date:
- 1974
- Bibcode:
- 1974hetr....1..260B
- Keywords:
-
- Accommodation Coefficient;
- Contact Resistance;
- Mathematical Models;
- Solid-Solid Interfaces;
- Thermal Resistance;
- Automatic Test Equipment;
- Heat Measurement;
- Heat Transfer Coefficients;
- Porous Materials;
- Thermal Conductivity;
- Thermal Insulation;
- Thermodynamic Equilibrium;
- Fluid Mechanics and Heat Transfer