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在一定条件的约束下,扩散和两相流效应对喷管空气动力的设计和喷管效率实质上起着支配的作用。为了减少两相流动的损失,提出了一些一般原理。这些原理应用于所介绍的方法中,以便得到一种新的喷管形状。描述了收敛段,喉部和扩散段的结构,通过多项式的起始膨胀区的截短喷管的方法获得了扩散段的形状。所得到喷管的结构对减轻喷管重量比较有利。
Under certain conditions, the effects of diffusion and two-phase flow on nozzle aerodynamics design and nozzle efficiency play a dominant role. In order to reduce the loss of two-phase flow, some general principles are proposed. These principles apply to the method described in order to obtain a new nozzle shape. The structure of convergent section, throat section and divergent section is described. The shape of the divergent section is obtained by truncating the nozzle in the initial expansion region of the polynomial. The resulting structure of the nozzle to reduce the weight of the nozzle is more favorable.