特征线法在脉冲爆震发动机性能计算中的应用
Application of Characteristic Method to the Performance Calculation of the Pulse Detonation Engine
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摘要: 在x-t平面建立爆震波在爆震室内传播过程的物理模型,应用特征线算法对脉冲爆震发动机(PDE)一维非定常流进行了数值计算,在此基础上给出了脉冲爆震发动机的性能参数的计算方法。并举算例进行了计算和分析,结果表明应用特征线算法计算PDE性能是可行而且准确的。Abstract: A physical model of the detonation wave propagation process in the detonation combustion chamber was developed on the x-t diagram,and one-dimensional numerical simulation of the unsteady flow in a pulse detonation engine was conducted by applying characteristic method.With that an engine performance calculation method was deduced.The PDE performance calculation result shows that characteristic method is feasible and accurate.
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