建立了超音速气固两相分离装置试验系统，在室温和不同喷管进口全压下，对空心玻璃珠颗粒的分离效率进行了试验研究。
Separation efficiencies of hollow glass beads were measured under room temperature and different nozzle inlet total pressures from 482 kPa to 537 kPa.
当射流速度比较大时，喷管的缺陷如进口出口的毛刺和流道壁的粗糙度是诱发湍流使射流破断的主要原因。
The turbulence induced by the defects of nozzle, such as the burr at the inlet and outlet, and the roughness of the wall, is the main cause to decrease the length of intact jet.
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