Curvature dependence of heat transfer at a fluid-solid interface

A Dinler and RW Barber and SK Stefanov and DR Emerson, PHYSICAL REVIEW E, 98, 033104 (2018).

DOI: 10.1103/PhysRevE.98.033104

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.

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