HOC Simulation of Double-diffusive Natural Convection in a Rectangular Cavity

Over the last few decades, Higher Order Compact (HOC) finite difference schemes have been tremendously gaining popularity among the researchers of computational fluid dynamics community, mainly because of their higher accuracies on smaller stencils. However, in most cases, their application is mainly confined to the computation of fluid flows and may be, in some cases to the problems of heat transfer only. The present work therefore intends to propose a new HOC scheme for problems in heat and mass transfer by extending an existing HOC scheme to a problem of combined heat and mass transfer. It is very interesting to observe that on a very coarser grid of size only 21X41 the results obtained are in very excellent match with the established ones.