Abstract
An experimental study to investigate the effect of nozzle length-to-diameter ratio and the inlet curvature on the surface properties of turbulent liquid jets in gaseous crossflow was carried out. Straight nozzles with length/diameter ratios of 10, 20, and 40 were used to generate turbulent liquid jets in gaseous crossflow. The radius of curvature ofthe nozzles used was 0.6,1.2, and 2.4. The present study was limited to small Ohnesorge number liquid jets (Oh 110). The diagnostics consisted of double-pulsed holographic microscopy and shadowgraphy. The measurements included liquid-jet surface properties, breakup location of the liquid column as a whole, and the breakup-regime transitions. The measurements were interpreted and correlated using phenomenological analyses. It was observed that the injector passage length plays a role in determining the breakup length and influences the characteristics of the jet upwind surface.
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