Curvature dependence of heat transfer at a fluid-solid interface


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DİNLER A. , Barber R. W. , Stefanov S. K. , Emerson D. R.

PHYSICAL REVIEW E, vol.98, no.3, 2018 (Journal Indexed in SCI) identifier

  • Publication Type: Article / Article
  • Volume: 98 Issue: 3
  • Publication Date: 2018
  • Doi Number: 10.1103/physreve.98.033104
  • Title of Journal : PHYSICAL REVIEW E

Abstract

This study reports an opposing effect of curvature on the interfacial heat transfer, which implies a monotonic increase in the temperature jump over a convex surface and, conversely, a monotonic decrease in the temperature jump over a concave surface, as the curvature of the surface increases. The study shows that this effect is present at both gas-solid and liquid-solid interfaces. The curvature dependence of the interfacial thermal conductance is also investigated and the opposing effect is elucidated by the change in the thermal conductivity of the fluid-solid interface.