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实验研究了甘油 -水溶液通过用不同加工方法和不同喷管长度 /直径比的喷管形成射流的破断长度。射流的行为与喷管内是层流还是湍流的流动状态关系极大。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。这些结果对化学氧碘激光的射流式 O2 ( 1Δ)发生器的喷管设计和制造提供了有价值的参考。
Experiments were conducted to investigate the breaking length of a jet of glycerin-water solution through a nozzle with different processing methods and different nozzle length / diameter ratios. The behavior of the jet is very much related to the laminar or turbulent flow in the nozzle. When the jet velocity is relatively large, the nozzle defects such as the burr on the inlet and outlet and the roughness of the flow channel wall are the main reasons for the induced turbulence to break the jet. These results provide a valuable reference for the design and manufacture of nozzle for the chemical oxygen-iodine laser jet O2 (1Δ) generator.