There are particles on whole cross section of nozzle divergent section and this fact shows that there is no"no particles zone"in nozzle divergent section.
喷管扩张段整个截面上都有粒子分布， 说明喷管扩张段中不存在“无粒子区”；
Along with the increase of the secondary flow pressure ratio, the shock move toward upstream divergent section and the thrust vector angle gradually increases;
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；
A new propulsion concept of 2 D C D vectoring nozzle was proposed, which had a convergent duct shaped by spheric surface and a divergent one with rectangular transverse section.
提出了一种二元收扩矢量喷管的概念，用热射流实验台对二元矢量喷管进行了过膨胀状态下的喷管模型热态实验。
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