摘要
铝粉在水蒸气中燃烧时间的测定是非常复杂和困难的,文中对几种燃烧模型进行了对比计算。结果表明,各种模型的计算结果相差较大。在对比分析的基础上,采用了Brooks模型来计算燃烧时间,并由此获得了颗粒轨道模型中所需的计算参数。对某试验发动机的补燃室流场进行计算,获得的温度场与试验结果相吻合,说明这种处理方法是合理的。所建立的水冲压发动机补燃室的数值模型为补燃室燃烧组织的深入研究提供了参考。
It is very complex and difficult to measure combustion time of aluminum particles in steam. The comparative calculations of several combustion models indicated that there exist greater differences among them. Based on comparative analysis, the combustion time was calculated by means of Brooks model, and other parameters of the particle-trajectory models were obtained. The flow field of afterburner of a water ramjet was numerically simulated and the calculated temperature field was in agreement with the test results, which indicate that the method is feasible. The presented numerical models can be used as the references for combustion organizing study.
出处
《固体火箭技术》
EI
CAS
CSCD
北大核心
2009年第2期150-153,共4页
Journal of Solid Rocket Technology
基金
自然科学基金项目(No.50676087)
关键词
水冲压发动机
补燃室
铝水反应
燃烧模型
water ramjet
afterburner
aluminum-water reaction
combustion model
