Heat transfer conjugate (HTC) calculation methodology was used to simulate the cooled stators and transition section of a micro-small gas turbine,in order to study the influence of transition section on clocking effects of hot spot and cooled stators.The results show that: hot spot moves to the hub in the C-type transition section;compared with the axial flow transition section, the C-type transition section reduces the clocking effects, which is due to the translation of hot spot and the three dimensional characteristics of the flow.%以某微小型燃气轮机气冷涡轮和进口过渡段为研究对象,采用流热耦合数值模拟方法,研究进口过渡段对热斑/气冷涡轮时序效应的影响.研究结果表明:C型过渡段会造成热斑中心发生向轮毂的迁移;由于热斑迁移及复杂三维流场的原因,相比于轴流过渡段,C型过渡段使得热斑/气冷涡轮时序效应带来的导叶温度场在不同热斑时序位置下的差异减弱.
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