Numerical Simulation of Rarefied Gas Flows with Specified Heat Flux Boundary Conditions. (3rd June 2015)

• Record Type: Journal Article
• Authors: Meng, Jianping; Zhang, Yonghao; Reese, Jason M.
• Is Part Of: Communications in computational physics. Volume 17:Number 5(2015:May)
• Page Start: 1185
• Page End: 1200
• Publication Date: 2015-06-03
• Subjects: Mathematical physics -- Data processing -- Periodicals; Physics -- Data processing -- Periodicals; 530.150285
• DOI: 10.4208/cicp.2014.m343
• Languages: English
• ISSNs: 1815-2406

Abstract

<abstract abstract-type="normal"> <title>Abstract</title> <p>We investigate unidirectional rarefied flows confined between two infinite parallel plates with specified heat flux boundary conditions. Both Couette and force-driven Poiseuille flows are considered. The flow behaviors are analyzed numerically by solving the Shakhov model of the Boltzmann equation. We find that a zero-heat-flux wall can significantly influence the flow behavior, including the velocity slip and temperature jump at the wall, especially for high-speed flows. The predicted bimodal-like temperature profile for force-driven flows cannot even be qualitatively captured by the Navier-Stokes-Fourier equations.</p> </abstract>