Heat transfer from/to a liquid droplet in two-dimensional flow field

Numerical simulation of the internal and external flow fields and heat transfer of a liquid droplet moving in a gaseous media are considered. The present work is concerned with the time accurate numerical solution of a two-phase flow field at low Mach number limit. MAC (Marker And Cells) method is used to solve conservation of mass, momentum, and energy equations. Rhie and Chow method is used to obtain an oscillation-free flow field and QUICK method is used to difference the upwind convective terms. An appropriate volume tracking method named FLAIR is considered to capture the motion and deformation of a two-dimensional liquid droplet. In particular, heat transfer from/to a liquid drop which starts moving with a co-flowing gas stream in a two dimensional zero gravity field is simulated. The effects of the gas flow Reynolds number and Prandtl number on the heat transfer of the drop have been investigated. (author)