无引气式涡轮级间燃烧室设计与数值研究  

Design and Numerical Analysis of Inter-Turbine Burner without Bleed

作　　者：骆广琦[1] 胡磊[1] 孙东[1] 张海明[1] 

机构地区：[1]空军工程大学工程学院,陕西西安710038

出　　处：《燃气涡轮试验与研究》2012年第1期1-4,共4页Gas Turbine Experiment and Research

摘　　要：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-ε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。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.

关 键 词：涡轮级间燃烧室 无引气式 离散相模型 非预混平衡化学反应 数值仿真 

分 类 号：V231.2[航空宇航科学与技术—航空宇航推进理论与工程]