Abstract
In this paper, a computational method for thermal interactions between compressible fluids and solids was applied to the natural convection around two horizontal circular cylinders that have constant temperature in vertical array. This method enables us to simultaneously calculate natural convection and heat conduction around and in arbitrarily shaped solids considering compressibility of fluids. As a result of computations, predicted isotherms around the cylinders were in good agreement with experimental results. In addition, numerical experiments for heat-generating cylinders, which have heat generation per unit volume, were conducted and reasonable temperature distributions were obtained considering effects of heat conduction in the cylinders.
