A water jet exposed to a low subsonic air cross-flow was studied experimentally to determine the jet/spray trajectory based on the jet's upper boundary.The nozzle diameter as well as the cross-flow and water jet speeds were varied to provide a wide range of experimental conditions.Although this study is not entirely novel,the results of previous research are extended to low subsonic cross-flows having a maximum axial velocity of about 70 m/s.The previous assertion that data from the supersonic range could be extrapolated straightforwardly to subsonic cases was shown to be largely true,even over a wider range of momentum flux ratios than those con- sidered previously.In addition,an attempt was made to identify and discuss the possible rea- sons behind the lack of a universal jet/spray trajectory correlation.
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机译：实验研究了暴露于低亚音速空气交叉流的水射流，以根据射流的上边界确定射流/喷雾的轨迹，并改变了喷嘴直径以及横流和水射流的速度，以提供较大的范围尽管这项研究并非完全新颖，但先前的研究结果已扩展到最大轴向速度约为70 m / s的低亚音速横流。先前的说法是可以直接推断超音速范围的数据即使在比以前认为的动量通量比更大的范围内，亚音速情况也被证明是真实的。此外，试图确定和讨论缺乏通用射流/的原因。喷雾轨迹的相关性。
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