脉冲爆轰发动机内三维两相爆轰的数值计算

推进技术 ›› 2010, Vol. 31 ›› Issue (4): 503-507.

脉冲爆轰发动机内三维两相爆轰的数值计算

马丹花,翁春生

南京理工大学瞬态物理国家重点实验室;南京理工大学瞬态物理国家重点实验室

发布日期:2021-08-15
基金资助:
国家自然科学基金(10672080);重点实验室基金(9140C30040401090C30)

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

National Key Lab.of Transient Physics,Nanjing Univ.of Science and Technology,Nanjing 210094,China;National Key Lab.of Transient Physics,Nanjing Univ.of Science and Technology,Nanjing 210094,China

Published:2021-08-15

摘要/Abstract

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。

关键词: 三维;两相流;爆轰;脉冲爆轰发动机;数值计算

Abstract: 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.

Key words: Three-dimensional;Two-phase fluid;Detonation;Pulse detonation engine;Numerical calculation

马丹花,翁春生. 脉冲爆轰发动机内三维两相爆轰的数值计算[J]. 推进技术, 2010, 31(4): 503-507.