基于特征线的脉冲爆震发动机性能估算与结构参数设计

Characteristic-Based Performance Calculation and Structural Parameters Design of Pulse Detonation Engine

在x-t平面建立了脉冲爆震发动机(PDE)爆震室内爆震波传播过程的物理模型,在此基础上应用特征线算法给出了一种脉冲爆震发动机性能参数估算方法,确定了PDE性能参数与结构参数之间的定量关系,建立了PDE结构参数的设计方法。用算例对不同推力水平的脉冲爆震发动机结构参数进行了设计与分析,为脉冲爆震发动机设计与应用提供理论依据。

A physical model of detonation wave propagation process in the detonation combustion chamber is developed on the diagram, based on this a performance parameter calculation method of the pulse detonation engine is made by applying characteristic method, the quantitative relation between performance parameters and structural parameters of the pulse detonation engine is obtained, and structural parameters design method of the pulse detonation engine is established. The calculation examples are used in the design and analysis of the structural parameters of PDE with different thrust levels, this provides theoretical bases for the design and application of pulse detonation engine.