Numerical Simulation of 2D Radiation Heat Transfer for Reentry Vehicles

Publisher Summary The chapter presents a parallel algorithm to calculate a strongly radiating axisymmetric flow field over a blunt body, introduce a database of absorption coefficients and use it in parallel computing, and compare results of flow with and without radiation influence. The design of a thermal protection system for the space vehicle is an important problem. It requires an accurate prediction of the heating environments. The chapter uses diffusion approximation to investigate radiation heat transfer for reentry vehicles. A high-performance parallel computing system is used to reproduce a structure of flow for the radiation heat transfer processes in reasonable computation time. A numerical method is used as a parallel program for distributed memory computer systems. The parallel realization is based on the geometrical parallelism principle. Database allows computing more exactly the values of absorption coefficients for radiation problems. Numerical results show that the radiation heat transfer processes are of primary importance for the accurate prediction of gas dynamics fields for such problems..