脉冲爆轰发动机内三维两相爆轰的数值计算  

Calculation of three-dimensional two-phase detonation in pulse detonation engine

作　　者：马丹花[1] 翁春生[1] 

机构地区：[1]南京理工大学瞬态物理国家重点实验室,江苏南京210094

出　　处：《推进技术》2010年第4期503-507,共5页Journal of Propulsion Technology

基　　金：国家自然科学基金(10672080);重点实验室基金(9140C30040401090C30)

摘　　要：根据脉冲爆轰发动机内脉冲爆轰的特点,建立三维两相爆轰的理论模型。应用国际上最近发展起来的CE/SE方法,数值模拟爆轰管内三维两相燃烧转爆轰的过程。计算结果表明:当点火起爆后,在燃烧转爆轰过程中,三维效应非常明显。当形成稳定爆轰波后,三维效应不明显。计算压力值和实验压力值符合得较好。According to the characteristic of pulse detonation inside the pulse detonation engine,the three-dimensional models for two-phase detonation were built.The CE/SE method was used to calculate the deflagration to detonation.The cal-culation results show that the pressure field inside the tube is three-dimensional variation during the deflagration to detonation.When it is detonation wave,three-dimensional effect degenerates to be two-dimensional.The pressure data agree well with the experimental data.

关 键 词：三维 两相流 爆轰 脉冲爆轰发动机 数值计算 

分 类 号：V235.22[航空宇航科学与技术—航空宇航推进理论与工程]