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Numerical investigation of turbine mass-flow rate regulation using impulsive airflow injection
Author(s): 
Pages: 26-30
Year: Issue:  6
Journal: Gas Turbine Experiment and Research

Keyword:  变循环发动机涡轮流量调节脉冲频率脉冲幅值三维数值模拟;
Abstract: 采用三维数值模拟方法,对在导叶表面射入脉冲式气流的涡轮流场进行计算,对比了脉冲式射流与静态射流对涡轮流量的影响,分析了脉冲频率、脉冲幅值对涡轮流量调节的影响规律.结果表明:在保证与静态射流同等工况调节效果的同时,脉冲式射流对涡轮的效率有所提升,低频率的脉冲喷气有更宽广的涡轮流量调节范围,较高幅值的脉冲喷气更有利于涡轮流量调节.
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