A numerical study of the heat transfer through a rarefied gas confined in a micro cavity

Date

2015

Authors

Rana, Anirudh Singh
Mohammadzadeh, Alireza
Struchtrup, Henning

Journal Title

Journal ISSN

Volume Title

Publisher

Continuum Mechanics and Thermodynamics

Abstract

Flow and heat transfer in a bottom-heated square cavity in a moderately rarefied gas is investigated using the R13 equations and the Navier–Stokes–Fourier equations. The results obtained are compared with those from the direct simulation Monte Carlo (DSMC) method with emphasis on understanding thermal flow characteristics from the slip flow to the early transition regime. The R13 theory gives satisfying results—including flow patterns in fair agreement with DSMC—in the transition regime, which the conventional Navier–Stokes–Fourier equations are not able to capture.

Description

Keywords

rarefied gases, R13 equations, Navier–Stokes–Fourier equations, Slip–jump boundary condit, Thermal cavity, Numerical heat transfer

Citation

Anirudh S. Rana, Alireza Mohammadzadeh, and Henning Struchtrup. (2015). "A numerical study of the heat transfer through a rarefied gas confined in a micro cavity." Cont. Mech. Thermodyn., Vol. 27(3), pp 433-446 (2015)