摘要
为了研究一次进水角度对二次进水水冲压发动机比冲性能的影响规律,建立了发动机补燃室两相流反应模型,对镁基水冲压发动机补燃室流场进行了数值模拟,获得了发动机喷管出口温度、出口压力、出口气流速度及发动机比冲随一次进水角度的增大先升高后降低的变化趋势,在此基础上进行了水冲压发动机地面直连式试验研究。结果表明,一次进水角度在40°左右时,二次进水水冲压发动机比冲性能较优。
A two-phase reaction model of the secondary combustor was established to study the effect of primary water penetration angle on engine performance of magnesium-based water ramjet with secondary water penetration. The change tendency of specific impulse, temperature, velocity and pressure of nozzle exit were obtained with primary water penetration. Direct-connected tests were carried out in order to validate the correctness of the numerical simulation. The result shows that as the primary water penetration angle between 40°, the specific impulse of water ramjet become better.
出处
《固体火箭技术》
EI
CAS
CSCD
北大核心
2009年第5期496-499,共4页
Journal of Solid Rocket Technology
关键词
水冲压发动机
比冲性能
一次进水
数值模拟
直连式试验
water ramjet
specific impulse
primary water penetration
numerical simulation
direct-connected test
作者简介
作者简介：韩超（1983-），女，博士生，研究方向为水冲压发动机。E-mail：fatal_han@163．com.
