Thermal analysis of an SI engine piston using different combustion boundary condition treatments

In this study, the heat transfer to an engine piston crown is calculated. Three different methods for the combustion boundary condition are used. The results of different combustion side boundary condition treatments are compared and their effects on the thermal behavior of the piston are investigated. It has been shown that using spatial and time averaged combustion side boundary condition is a suitable treatment method within engineering approximations. An interface between KIVA-3V and NASTRAN codes is developed.