Heat transfer in rarefied gas at a gas-solid interface

Autor: Satish C. Saxena, Yaşar Demirel
Rok vydání: 1996
Předmět:
Zdroj: Energy. 21:99-103
ISSN: 0360-5442
DOI: 10.1016/0360-5442(95)00096-8
Popis: Modified expressions for the heat-transfer fluxes at the interface of a solid surface and a gas are given for different Knudsen-number regimes. These expressions for diatomic gases contain both a gas-reflection and a thermal accommodation coefficient. Parallel-plate, coaxial-cylindrical and concentric-spherical surfaces are considered. A general expression for the thermal accommodation coefficient is based on experimental data. Sample numerical calculations of heat flux in different heat-transfer regimes are presented in terms of the reciprocal Knudsen number.
Databáze: OpenAIRE