A simulation work aiming to study heat transfer coefficient between argon fluid flow and copper plate is carried out based on atomistic-continuum hybrid method. Navier-Stokes equations for continuum domain are solved through the Pressure Implicit with Splitting of Operators (PISO) algorithm, and the atom evolution in molecular domain is solved through the Verlet algorithm. The solver is validated by solving Couette flow and heat conduction problems. With both momentum and energy coupling method applied, simulations on convection of argon flows between two parallel plates are performed. The top plate is kept as a constant velocity and has higher temperature, while the lower one, which is modeled with FCC copper lattices, is also fixed but has lower temperature. It is found that, heat transfer between argon fluid flow and copper plate in this situation is much higher than that at macroscopic when the flow is fully developed.
|出版狀態||Published - 1 1月 2014|
|事件||ASME 2014 International Mechanical Engineering Congress and Exposition, IMECE 2014 - Montreal, Canada|
持續時間: 14 11月 2014 → 20 11月 2014
|Conference||ASME 2014 International Mechanical Engineering Congress and Exposition, IMECE 2014|
|期間||14/11/14 → 20/11/14|