CAJ | 학술논문

以应用于某涡轴发动机的涡轮级间燃烧室为研究背景，设计并加工多方案3头部涡轮级间燃烧室试验件，试验研究了主流马赫数、主流温度、凹腔深宽比和凹腔后体高度变化对其贫油熄火性能的影响。试验结果表明：贫油熄火余气系数随主流马赫数的增大而减小，随主流温度的升高而增大，但主流温度的变化不如主流马赫数变化对贫油熄火性能的影响大；后体进气量的增加对提高贫油熄火性能有利；凹腔深宽比和凹腔后体高度的变化对贫油熄火性能有一定影响；深宽比为0．8、后体高度为30mm且在后体开槽的试验件的贫油熄火性能最好。
이응용우모와축발동궤적와륜급간연소실위연구배경，설계병가공다방안3두부와륜급간연소실시험건，시험연구료주류마혁수、주류온도、요강심관비화요강후체고도변화대기빈유식화성능적영향。시험결과표명：빈유식화여기계수수주류마혁수적증대이감소，수주류온도적승고이증대，단주류온도적변화불여주류마혁수변화대빈유식화성능적영향대；후체진기량적증가대제고빈유식화성능유리；요강심관비화요강후체고도적변화대빈유식화성능유일정영향；심관비위0．8、후체고도위30mm차재후체개조적시험건적빈유식화성능최호。
Muhimode three dome Inter-stage Turbine Burner(ITB) test pieces were designed and manufactured based on a turboshaft engine. The effect of the Mach number of main air, the temperature of main air, the ratio of the depth and width of cavity and the height of after body of cavity on Lean Blow-Out (LBO) characteristics was studied by the experiment. The results show that LBO excess air coefficient decreases with the Mach number of main air increase and increases with the main air temperature increase, but the changing of temperature has less impact on LBO characteristics compared with the Mach number. Increasing the airflow from the after body of cavity helps to improve LBO performance. The ratio of the depth and width and the height of after body has definite effect on LBO performance. LBO characteristics is the best when the ratio of the depth and width is 0.8, the height of after body is 30 mm and the after body of cavity is slotting.