With the development of space technology, it is very important to predict the temperature field of local complex structures. In this paper, according to the prediction of local structure temperature field under non-ablative conditions, respectively, will calculate the heat flux through the one-dimensional finite difference method into constant temperature boundary surface temperature and direct calculation method with constant heat flux boundary results were compared and analyzed. It is concluded that the calculation method of canstant heat flux boundary and constant temperature boundary is also suitable for quartz fiber reinforced ceramic matrix composites with local structure. For the surface material with large thermal conductivity in local structure,the calculation results with fixed heat flux boundary are more reasonable. |