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热传导对离心压气机性能及流场的影响

Influence of Heat Transfer on the Performance and Flow Field in a Centrifugal Compressor
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摘要 为研究壁面传热对离心压气机内部流场的影响,对一燃气轮机离心压气机内部流场进行数值模拟,得到不同壁面条件下压气机内部流场参数。结果表明:当传热量较大时,壁面传热对流动影响较明显,壁面冷却使局部气体温度降低,压力降低,流线发生变化,压气机做功更有效;同时适当位置的壁面冷却可以有效减小出口损失。 To study the influence of wall heat transfer on the flow field in the compressor, the flow field of a gas turbine＇ s centrifugal compressor is simulated and analyzed in this paper. Numerical results show that wall heat transfer plays an important role when heat transfer is intense. Cooling wall leads to the de- crease of local temperature and pressure. As a result, the streamlines deviate compared with adiabatic wall cases. On the other hand, cooling wall makes gas flow easier to compress. Wall cooling at specific locations makes outlet losses smaller.
作者 王立 卢少鹏 马威 滕金芳
机构地区 上海交通大学航空航天学院
出处 《节能技术》 CAS 2016年第3期211-215,共5页 Energy Conservation Technology
关键词 离心压气机 壁面条件 传热 流动 气动损失 centrifugal compressor wall condition heat transfer flow field aerodynamic loss
分类号 V231.3 [航空宇航科学与技术—航空宇航推进理论与工程]
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参考文献9

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