Numerical simulation of time-dependent buoyant flows in a cavity containing an internal heat source

摘要

A time accurate finite volume method is used to predict the buoyancy-induced circulations promoted by an isothermal rectangular body i na rectangular enclosure containing air. Three values of the leading non idmensional parameter, the grashof number, are consider, envompassing the stability limit for steady laminar flow. The long term behaviour and the heat transfer performance of the system are discussed.