CONJUGATE SIMULATION OF FLOW AND HEAT CONDUCTION WITH A NEW METHOD FOR FASTER CALCULATION

摘要

A new conjugate simulation program for flow and heat conduction has been developed based upon a common CFD platform UPACS. It connects flow calculation blocks and solid blocks without using surface temperature values explicitly. The time-lag between flow simulation and heat conduction calculation which is a severe problem in conjugate heat transfer has been improved by introducing a heat conduction sub-step method. The developed program has been applied to simulations of new turbine cooling structures which are the integration of impingement and pin cooling device and revealed that the pin configuration changes the cooling efficiency.