CAJ | 학술논문

研究团聚硼颗粒在补燃室中的点火燃烧对提高固冲发动机性能具有重要意义。通过试验模拟固冲发动机工作过程的方法，开展了补燃室流场条件下的团聚硼颗粒点火燃烧试验。结合高速火焰图像处理技术和流场参数测量结果，对试验中团聚硼颗粒的点火燃烧状态、火焰结构以及颗粒尺寸变化等进行了分析，获得了补燃室燃气温度和氧气含量等因素对团聚硼颗粒点火燃烧过程的影响机制。对燃烧残渣进行了分析，发现燃烧前后颗粒尺寸变化不大，燃烧过程中高温气流可能进入了颗粒内部并与硼颗粒发生反应。
연구단취붕과립재보연실중적점화연소대제고고충발동궤성능구유중요의의。통과시험모의고충발동궤공작과정적방법，개전료보연실류장조건하적단취붕과립점화연소시험。결합고속화염도상처리기술화류장삼수측량결과，대시험중단취붕과립적점화연소상태、화염결구이급과립척촌변화등진행료분석，획득료보연실연기온도화양기함량등인소대단취붕과립점화연소과정적영향궤제。대연소잔사진행료분석，발현연소전후과립척촌변화불대，연소과정중고온기류가능진입료과립내부병여붕과립발생반응。
Investigation of boron particle agglomeration ignition and combustion in secondary chambers is very important for increasing the capabilities of ducted rockets.By experimentally mimicking ducted rockets,boron particle agglomeration ignition and combustion in secondary chamber flow field was investigated.The ignition and combustion processes,flame constructions and size changes of boron particle agglomeration were analyzed with the image processing techniques of high speed flame and the measurement results of flow field parameters.The effects of gas temperature and oxygen content on ignition and combustion of boron particle agglomeration were acquired.The analysis result of residue indicates that the particle size changes little and the gas may get into the boron particle agglomeration and react with boron particles.