固体火箭技术2015，Vol.38Issue(5)：646-652,7.DOI:10.7673/j.issn.1006-2793.2015.05.008
连续旋转爆轰发动机气液两相爆轰波传播特性二维数值研究
Numerical investigation on two-dimensional gas-liquid two-phase detonation wave propagation characteristics of continuous rotating detonation engine
摘要
Abstract
In order to discuss the formation and propagation of detonation wave of the liquid fuel continuous rotating detonation engine( CRDE) ,the two-dimensional CE/SE method is used to simulate the detonation process of gasoline and oxygen-enriched air two-phase CRDE.The gas-liquid two-phase detonation flow field of CRDE,the structure of detonation wave,and the variation of flow field at inlet and exit were analyzed,then the self-sustaining mechanism of CRDE was revealed.The results show that rotating detona-tion is initiated by the method of multistep filling fuel,forming a stable detonation wave along one direction propagation rapidly and effectively.In circumferential direction,the discontinuity of exit flow field appears behind the discontinuity of inlet. Oblique shock wave and contact discontinuity are the main reasons of the formation of discontinuity in the exit flow field, while the discontinuity of inlet flow field is caused by detonation wave.The two-dimensional numerical simulation of gas-liquid two-phase CRDE gives us better understanding of the liquid fuel CRDE and provides guidance for the research of liquid fuel CRDE.关键词
CE/SE方法/连续旋转爆轰发动机/气液两相/流场/自持机理Key words
CE/SE method/continuous rotating detonation engine/gas-liquid two-phase/flow field/self-sustaining mechanism分类
航空航天引用本文复制引用
李宝星,翁春生..连续旋转爆轰发动机气液两相爆轰波传播特性二维数值研究[J].固体火箭技术,2015,38(5):646-652,7.基金项目
国家自然科学基金( 11472138 ) （ 11472138 ）
中央高校基本科研业务费专项基金( 30920130112007 ) （ 30920130112007 ）
国防预研基金( 9140c300202120c30). （ 9140c300202120c30）
