CAJ | 학술논문

利用流体计算软件模拟涡轮级间燃烧室（ITB）三维两相燃烧流场。对比分析无引气式ITB与传统ITB性能及流场分布。采用Realizablek—s模型模拟湍流黏性，离散相模型追踪油珠运动轨迹，非预混平衡化学反应模型模拟燃烧过程。计算结果表明：无引气式ITB除总压损失比传统ITB的稍大外，其它指标均与传统ITB的相当；但由于该方案不需要额外引气，故提升了ITB发动机性能及应用价值。
이용류체계산연건모의와륜급간연소실（ITB）삼유량상연소류장。대비분석무인기식ITB여전통ITB성능급류장분포。채용Realizablek—s모형모의단류점성，리산상모형추종유주운동궤적，비예혼평형화학반응모형모의연소과정。계산결과표명：무인기식ITB제총압손실비전통ITB적초대외，기타지표균여전통ITB적상당；단유우해방안불수요액외인기，고제승료ITB발동궤성능급응용개치。
The differences between traditional Inter-Turbine Burner （ITB） and ITB without bleed were analyzed by using CFD software to simulate the 3D combustor on two phase combustion performances and combustion flows. Realizable k- s model was applied to simulate the turbulence viscosity. The fuel droplet trajectories were modeled in Lagrangian frame of reference by using discrete phase model. Non-premixed combustion model was used to model turbulence-chemistry interaction. The calculation results indicated： this ITB has basically reached the performance index of the traditional ITB except for total pressure loss a bit larger. At the same time, this ITB did not need extra bleeding, which promoted the performance and application of ITB engine greatly.