Abstract
The classical molecular dynamics simulation was conducted in order to clarify the effects of the surface structural clearances in nanometer scale on a thermal resistance at a liquid-solid interface as well as the static and dynamic behaviors of fluid molecules in the vicinity of the surface. The thermal resistance between the liquid molecular region and the solid walls with nanostructures was calculated by the heat flux and the temperature discontinuity obtained in the molecular dynamics simulations. The geometric surface area change depending on the nanostructures as well as their clearances and the dynamic behavior change of the fluid molecules at the interface depending on the nanostructural clearances cause the thermal resistance reduction depending on the nanostructures at the liquid-solid interface. The thermal resistance reduction mechanism by the nanostructures at a liquid-solid interface was discussed in the present study.