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为了研究涡轮基组合循环发动机的安装性能,基于美国Georgia大学工程技术研究中心提出的HSF高速飞行器,选择并联式涡扇-冲压组合发动机方案作为研究对象。采用数值模拟方法,研究了并联式涡扇-冲压组合发动机的工作模式转换点的确定方法,以及模式转换过程中气动参数变化和几何调节规律,建立了适用于并联式涡轮基组合发动机的进排气系统安装损失计算模型及安装性能计算模型。研究表明,通过几何和发动机供油规律调节,可保证在推力连续的准则下完成工作模式转换,发动机的安装性能满足飞行器的要求。
In order to study the installation performance of turbine-based combined cycle engines, a parallel turbofan-ram combination engine was selected as the research object based on the HSF high-speed aircraft proposed by the Georgia Institute of Technology and Engineering. The numerical simulation method was used to study the method to determine the working mode transition point of the parallel turbofan-ram combination engine and the variation of the aerodynamic parameters and geometric regulation during the mode conversion. Gas System Installation Loss Calculation Model and Installation Performance Calculation Model. The research shows that through the regulation of the geometry and the regulation of the engine oil supply, the working mode conversion can be guaranteed under the continuous thrust criterion and the engine mounting performance meets the requirements of the aircraft.