论文部分内容阅读
为了研究瞬态等离子体点火起爆脉冲爆震发动机的可行性,设计了适用于脉冲爆震发动机的瞬态等离子体点火器,并对瞬态等离子体点火和火花塞点火的放电过程进行了对比,瞬态等离子体点火器具有更大的点火面积。在此基础上,以甲烷气为燃料,对瞬态等离子体点火和火花塞点火的爆震起爆过程进行了二维数值模拟研究,数值模拟结果表明,采用等离子体点火起爆过程引发爆震所需的爆燃到爆震时间和距离比火花塞点火起爆过程缩短了64%和22%。
In order to study the feasibility of transient plasma ignition detonation pulse detonation engine, a transient plasma igniter suitable for pulse detonation engine is designed, and the discharge process of transient plasma ignition and spark ignition is compared. State plasma igniter has a larger ignition area. On the basis of this, a two-dimensional numerical simulation of the detonation and detonation of transient plasma ignition and spark plug ignition is carried out with methane gas as fuel. The numerical simulation results show that the detonation initiation required by the plasma ignition initiation process The time and distance from detonation to detonation were reduced by 64% and 22% compared to spark ignition initiation.