セラミックタイルの輻射熱伝導連成解析

抄録

The radiative heat transfer is a dominant heat transfer mechanism at high temperature in the insulation materials of the thermal protection system (TPS) of reentry vehicles because of the high porosity of the materials. It has been well known that serious problems come out when a simple heat conductive analysis is conducted with a thermal conductivity measured by a usual static method and that one should take into account the coupling of radiative and conductive heat transfer in the thermal analysis of such insulations. A finite element code for the combined radiation-conduction analysis is developed. A series of experiments with ceramic tile insulator is also conducted to obtain the fundamental radiative heat transfer properties and to examine the validity of the developed FE program.