Jet coherence is of critical importance in grinding fluid application. Prior works to this end have largely delved into engineering contoured nozzles to promote coherence, with modest results. Inspired by decorative laminar fountains that display coherent jets, the present research focused instead on laminarizing the flow through a simple cylindrical nozzle. Augmented by the intriguing phenomenon of hydraulic flip, such jets possess extreme coherence and resemble smooth, transparent glass rods. Investigations indicate them to be valuable in applications like flute/groove grinding that necessitate precision fluid delivery and in instances that constrain the proximity of the nozzle to the grinding zone.

射流相干性在研磨液应用中至关重要。为此，之前的工作主要是研究设计轮廓喷嘴以促进连贯性，并取得了适度的结果。受到显示连贯射流的装饰层流喷泉的启发，本研究的重点是通过简单的圆柱形喷嘴层流化流动。在液压翻转的有趣现象的作用下，这种射流具有极高的连贯性，类似于光滑、透明的玻璃棒。调查表明，它们在需要精确流体输送的凹槽/凹槽磨削等应用中以及限制喷嘴接近磨削区域的情况下非常有价值。