Abstract
In this paper, numerical simulations of internal and external flows of circular tubes with consideration of heat transfer are performed on a PC-Cluster. To estimate thermal interaction between fluid and solid, both flows of thermal fluid and heat transfer in the tube walls must be considered. To analyze both regions of thermal fluid and solid simultaneously, the velocity in the governing equations is set to zero in the solid region. Almost all processes of the computation are parallelized based on the domain decomposition method, where the message passing interface (MPI) is used as a message-passing library. The flows and heat transfer of two circular tubes in tandem arrangement at a Reynolds number of 120 are analyzed.
