摘要
基于带化学反应的三维Euler方程,采用氢气-空气的9组分19步基元反应简化模型,对圆环形燃烧室内的旋转爆轰进行了数值模拟,讨论了旋转爆轰波的三维结构及侧向稀疏波对旋转爆轰波阵面的影响。数值结果表明,爆轰波能够以旋转方式沿预混气层稳定传播。在侧向稀疏波作用下,爆轰波阵面发生变形。与理想的C-J爆轰相比,爆轰波强度和爆轰参数都有所下降。
Based on the multicomponent three-dimensional Euler equation, the phenomena of rotating detonation in the annular combustor were simulated numerically, and the three-dimensional structure of the rotating detonation wave and the effects of the lateral rarefaction waves on the detonation wave front were discussed. The numerical results show that the rotating detonation wave can propagate steadily in the layer of premixed gas, and the detonation wave front is distorted due to the lateral rarefaction nation waves. Compared with the ideal CJ detonation, the intensity and parameters of rotating detowave both decline somewhat.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2010年第4期337-341,共5页
Explosion and Shock Waves
基金
国家自然科学基金项目(10872096)
北京理工大学爆炸科学与技术国家重点实验室开放基金项目(KFJJ09-13)~~
关键词
爆炸力学
三维结构
三维Euler方程
旋转爆轰
侧向稀疏波
mechanics of explosion
three-dimensional structure
three-dimensional Euler equation
rotating detonation
lateral rarefaction waves
