The paper presents radiation models developed to investigate radiation in entry in Earth, Mars and Jupiteratmospheres. The capacity of ASTEROID computing code to simulate elementary radiative processes, calculate spectraland groups optical properties, and also solve simple radiative heat transfer problems is presented for Earth entry. Thelarge number of radiative processes involved in the radiative flux is put forward. The contributions of the differentradiative processes encountered in Mars entry are studied using the HTGR spectroscopic database. The validity of thisdatabase with respect to diatomic molecules systems and CO2 infrared radiation is illustrated through experimentalvalidations. The accuracy of statistical narrow-band model to predict radiative flux is illustrated for an afterbody. Finallyrecent improvements of the model developed for the calculation of radiative properties of high-temperature H2/Hemixtures representative of Jupiter atmosphere is presented. The model takes into account the most important radiativeprocesses.
展开▼
