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采用商业软件ANSYS CFX针对将柯恩达效应应用于燃机涡轮的可行性进行了探索,得到了不同射流总压和射流口高度时的环量控制叶型涡轮叶栅的二维流场和气动性能。结果表明:环量控制涡轮叶栅在射流总压不太高的条件下,就能够达到并超过原型叶栅的性能水平,射流总压的变化直接影响叶栅性能;射流口高度对叶栅性能的影响主要体现在其对射流速度的影响,在射流口较小时比较明显。
The commercial software ANSYS CFX is used to explore the feasibility of applying Coanda effect to the turbine of a gas turbine. The two-dimensional flow field and aerodynamic characteristics of a ring-type turbine cascade with different jet total pressure and jet port height are obtained. performance. The results show that the performance of the cascade can be achieved and surpassed when the total pressure of the turbine is not too high. The change of total jet pressure directly affects the cascade performance. The impact is mainly reflected in its jet velocity, jet port is relatively small when more obvious.