Fae Explosion Fireball Thermal Radiation Effects

The main research.of this thesis is about the fireball' s temperature and the heat radiation effect of DEFAE (Double Event Fuel Air Explosion) and SEFAE (Single Event Fuel Air Explosion). At present, because of lack knowledge of the mechanism of explosion fireball, the main method of researching the fireball' s temperature and heat radiation effect is measuring experiment. In order to evaluate the damage of FAE (Fuel Air Explosion), numerical simulation should be used as a method of theory research in this field. It can be useful to decrease the times of experiment and to predict the result of experiment.In this thesis, several numerical models of fireball have been summarized and analyzed. And then, the method of total enthalpy and the method of least free energy have been used to calculate the fireball' s temperature of DEFAE and SEFAE respectively. The results are fit to the experiment' s datum. According to the results, two methods were used to calculate the fireball' s heat radiation effect. It is shown that the S. B. Dorofeev' s method is better for this issue. At last, several methods of measuring fireball' s temperature and heat radiation effect have been introduced and analyzed.