射流式O2(1Δ)发生器射流破断长度测量
Measurement of jet breakup length for jet O2(1Δ) generator
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摘要: 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。Abstract: The breakup lengths of jets for glycerine and water solution emerged from the nozzles with the various passage/diameter ratio, and different manufacture methods, were experimentally investigated. The behavior of a jet depends dramatically on the flow state, laminar or turbulent, in the nozzle. 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. These results may be helpful to design and manufacture an appropriate nozzle of the jet O2(1Δ) generators for COIL.
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Key words:
- liquid jet /
- breakup length of jet /
- o2(1Δ) generator
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