两相旋转爆震发动机出口流场均匀性数值研究  

Numerical Study on the Uniformity of the Outlet Flow Field of a Two-Phase Rotating Detonation Engine

作　　者：马元 邹刚 孔光明 孙静 王文鹏 张宇坤 MA Yuan;ZOU Gang;KONG Guangming;SUN Jing;WANG Wenpeng;ZHANG Yukun(Qingdao Campus of Naval Aeronautical University, Qingdao 266100, China)

机构地区：[1]海军航空大学青岛校区,山东青岛266100

出　　处：《兵器装备工程学报》2021年第1期194-200,共7页Journal of Ordnance Equipment Engineering

基　　金：国家自然科学基金项目(12072163)。

摘　　要：为分析空气喷注总温和燃料喷注均匀性对非预混、非均匀喷注条件下旋转爆震波出口流场均匀性的影响,建立了旋转爆震发动机出口总压、总温均匀性评价指标,采用离散相模型对恰当量比空气-辛烷反应物的两相旋转爆震波进行了二维数值研究。研究结果表明:空气喷注总温和辛烷射流间距越大,燃烧室出口总压均匀性越好;空气喷注总温越高,射流间距越小,燃烧室出口总温均匀性越好。In order to analyze the influence of the total temperature of air and the uniformity of fuel injection on the outlet flow field uniformity of rotating detonation wave under the condition of non-premixing and non-uniform injection,the evaluation indexes of outlet total pressure and total temperature of RDE were established,and the two-phase rotating detonation wave of air-octane reactant with proper equivalence ratio was numerically studied by using discrete phase model(DPM).The results show that the larger the distance between the total air temperature and octane jet is,the better the uniformity of the total pressure at the exit of the combustion chamber is,and the higher the total air temperature is,the smaller the jet spacing is,the better the uniformity of the total temperature at the exit of the combustion chamber is.

关 键 词：旋转爆震波 两相 均匀性 喷注 

分 类 号：O381[理学—流体力学]