Measurement of jet breakup length for jet O2(1Δ) generator

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.