CAJ | 학술논문

保持单环腔主燃烧室的扩压器，外机匣最大直径尺寸以及喷口不变的前提下，将其火焰筒结构重新设计为并联式双环腔结构，设计了6种不同旋流器组合的双环腔结构燃烧室．采用相同的物理模型（包括湍流模型、辐射模型、喷雾模型及污染排放模型等），对单、双环腔主燃烧室分别进行全流程的三维计算．给出了燃烧室的总压恢复系数、燃烧效率、燃烧室出口温度分布系数、污染排放指标等燃烧室性能参数．对比分析了单、双环腔燃烧室的计算结果．结果表明，双环腔燃烧室置换单环腔燃烧室是可行的，该研究可为大飞机低污染大法动机的设计提供技术支持．
보지단배강주연소실적확압기，외궤갑최대직경척촌이급분구불변적전제하，장기화염통결구중신설계위병련식쌍배강결구，설계료6충불동선류기조합적쌍배강결구연소실．채용상동적물리모형（포괄단류모형、복사모형、분무모형급오염배방모형등），대단、쌍배강주연소실분별진행전류정적삼유계산．급출료연소실적총압회복계수、연소효솔、연소실출구온도분포계수、오염배방지표등연소실성능삼수．대비분석료단、쌍배강연소실적계산결과．결과표명，쌍배강연소실치환단배강연소실시가행적，해연구가위대비궤저오염대법동궤적설계제공기술지지．
In order to change a Single Annular Combustor（SAC） into a Dual Annular Combustor（DAC）, the authors kept the diffuser,outer case and atomize of the SAC unchanged,redesigned the combustor from a single annular structure into a dual annular structure,and designed six different structure DAC. Taking the same physical models（including the turbulence, radiation, spray and emission models）, simulations of three dimensional two-phase reacting turbulent flow in both the SAC and DAC were developed in the Fluent Code. The total-pressure recovery coefficient, temperature distribution and exhaust emission levels were given. Finally,by comparing the simulation results,the feasibility of displacing the SAC into DAC structure was certified.