微型燃气轮机圆筒形燃烧室内三维冷态流动数值模拟  

Numerical simulation of three-dimensional nonreactive flow in a Micro-Gas turbine cylindrical combustor

作　　者：刘绍华[1] 杨晨[1] 

机构地区：[1]重庆大学动力工程学院,重庆400044

出　　处：《机电设备》2008年第4期33-36,共4页Mechanical and Electrical Equipment

基　　金：国家自然科学基金(50576106)

摘　　要：对一个复杂的Allied Signal75kw微型燃气轮机筒形燃烧室应用CATIA软件进行实体建模,采用RNGk-ε湍流模型,应用FLUENT软件进行了三维冷态流场的数值模拟研究.计算结果很好地反映了燃烧室旋流和火焰筒壁空气掺混射流对燃烧室内流场分布有着重要的影响,为进一步优化燃烧室的结构设计、改善流场结构和开展燃烧室热态流场的数值模拟奠定了基础.Solid modeling of a complex cylindrical combustor about Allied Signal 75kw gas turbine was established with CATIA software. Three-dimensional nonreactive flow was studied numerically using the RNG k-ε turbulence model and FLUENT software. The numerical results indicated that the swirl flow at combustor inlet and the penetration for the dilution orifices affected strongly the flow field, which optimized the design and improved the flow and made the reactive flow of this gas turbine combustor feasible.

关 键 词：微型燃气轮机 燃烧室 数值模拟 冷态流场 

分 类 号：TK473.2[动力工程及工程热物理—动力机械及工程] O242[理学—计算数学]