Kapitza resistance at the liquid solid interface

TL;DR

This paper investigates the Kapitza resistance at liquid-solid interfaces using molecular dynamics simulations, revealing significant resistance when liquids do not wet solids and discussing its relation to hydrodynamic slip.

Contribution

It provides a detailed analysis of Kapitza resistance at liquid-solid interfaces and explores its analogy with hydrodynamic slip length using molecular dynamics.

Findings

Kapitza resistance can be substantial when liquids do not wet solids

The study establishes an analogy between Kapitza resistance and slip length

Simulation results quantify the resistance at different wetting conditions

Abstract

Using equilibrium and nonequilibrium molecular dynamics simulations, we determine the Kapitza resistance (or thermal contact resistance) at a model liquid solid interface. The Kapitza resistance (or the associated Kapitza length) can reach appreciable values when the liquid does not wet the solid. The analogy with the hydrodynamic slip length is discussed.