Heat Transfer by convection in nanotube arrays using molecular dynamics approach

Abstract

The fundamental understanding of the forced convective ow through the nano-structures become essential because of its wide range of applications in nano-scale devices. A new method is developed for simulating uncon_ned convective ow at steady state condition using molecular dynamics techniques. This methodology is modi_ed from a well developed method applicable in forced convective ow through a nano-channel. This research investigates the heat transfer process of argon ow over a carbon nanotube and carbon nanotube arrays with constant surface temperature. The arameters such as temperature _eld, velocity pro_le and average value of heat transfer coe_cient are analysed. In addition to this the thermal interfacial resistance between the water molecules and carbon nanotube is computed. Two con_gurations are considered for the case of carbon nanotube arrays based on the unit cell structure. The value of heat transfer coe_cient in both the con_gurations are compared. Results show that there is a slight change in heat transfer coe_cient with respect to con_guration structure. These _ndings, will be bene_cial for the electronic industries for the optimization of nano-structures design