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为了研究过渡段对爆震波衍射过程的影响,以氢气和氧气混合物为例,对不同过渡段张角下爆震波的衍射过程进行了数值模拟,结果表明,爆震波会在过渡段壁面产生反射激波,其强度随张角的减小而增大,同时,反射激波能将传入过渡段的爆震波分为3段,并在分界处产生高温、高压点,对爆震波从预爆管向主爆管的传播具有加强作用。模拟结果对预爆管起爆主爆震管实验中过渡段的选型有一定的参考意义。
In order to study the influence of the transition section on the detonation wave diffraction process, taking the mixture of hydrogen and oxygen as an example, the numerical simulation of the detonation wave at different transition angles is carried out. The results show that the detonation wave will generate reflection in the wall of the transition section Wave, the intensity of which increases with the decrease of the aperture angle. At the same time, the reflected shock wave can divide the detonation wave into three sections and generate high temperature and high pressure points at the boundary, Spread to the main squib has a strengthening effect. The simulation results have certain reference meaning for the selection of the transitional section in the experiment of the main detonator detonating tube.