次流压比的增加将导致激波向扩张段上游移动，且喷管矢量角不断增加；
Along with the increase of the secondary flow pressure ratio, the shock move toward upstream divergent section and the thrust vector angle gradually increases;
运用麦克斯韦方程组的矢量角谱表述，将平面衍射波分解为TE项和TM项。
Based on the vector angular spectrum representation of Maxwell's equations, the diffracted plane wave is decomposed into the te and TM terms.
研究表明，分离流动对矢量喷管的性能参数尤其是有效矢量角具有较大影响。
The results show that flow separation has much effect on the performance parameters, especially the efficient deficient angle of the nozzle.
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