CAJ | 학술논문

采用N-S方程、k-ε双方程和非预混燃烧简化PDF模型，对3种特型燃气喷口结构的固冲发动机补燃室掺混燃烧流场进行了数值研究。分析3种特型燃气喷口对补燃室中掺混燃烧的影响，并与常规型燃气喷口的仿真结果进行了对比分析。结果表明：特型燃气喷口可以有效增强补燃室中燃气与空气的掺混效果，提高燃气的完全燃烧程度，提升固冲发动机补燃室的特征速度；2#和3#特型喷口的补燃室掺混燃烧效果要比1#特型喷口更好，但是会带来更大的总压损失。
채용N-S방정、k-ε쌍방정화비예혼연소간화PDF모형，대3충특형연기분구결구적고충발동궤보연실참혼연소류장진행료수치연구。분석3충특형연기분구대보연실중참혼연소적영향，병여상규형연기분구적방진결과진행료대비분석。결과표명：특형연기분구가이유효증강보연실중연기여공기적참혼효과，제고연기적완전연소정도，제승고충발동궤보연실적특정속도；2#화3#특형분구적보연실참혼연소효과요비1#특형분구경호，단시회대래경대적총압손실。
Based on the N-S equation, k-ε turbulence models and no-premixed combustion simplified PDF models, numerical studies on the mixing and combustion of fuel-gas and air in the afterburning chamber of solid rocket ramjet were carried out fewer than three special fu-el-gas jets structures. The effects of the three special fuel-gas jets were analyzed and compared with simulation results of standard fuel-gas jets. The results show that, the mixing efficiency, full combustion extent and characteristic velocity in the afterburning chamber of solid rocket ramjet promoted when using special fuel-gas jets;mixing and combustion effects of 2# and 3# special fuel-gas jets better than that of 1# special fuel-gas jet, but they would bring more total pressure loss.