拡大管路におけるデトネーションの消炎過程の数値シミュレーション

抄録

The present paper studies processes of the failure of detonations propagating in a divergent nozzle by conducting numerical simulations. A finite-difference method, which combines the Random Choice Method with a chemical kinetics simulation code and a computational step for effects of nozzle cross section, is applied to simulate gasdynamic phenomena of one-dimensional detonations moving along a divergent nozzle in a hydrogen and oxygen diluted in argon mixture. Also, two-dimensional simulations are carried out and compared with the one-dimensional results. It is shown that the present one-dimensional calculations simulate averaged flow fields of the two-dimensional results over the cross section of the nozzle.