Liquid Jet Blasting Using Ultra-High Frequency Supersonic Pulsed Air Jet
Liquid Jet Blasting Using Ultra-High Frequency Supersonic Pulsed Air Jet
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DOI：
10.4236/jfcmv.2022.102004
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
J. Solomon
中科院分区：
文献类型：
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作者：
J. Solomon
本文报道了与工作频率为21 kHz的超高频脉冲空气射流集成在一起的液体喷射器组件的实验研究。主动空气喷射组件通过四个直径为0.4 mm的微喷嘴稳定地注入液体，这些微喷嘴位于一个1 mm喷嘴周围，脉冲激励射流通过该喷嘴以超音速流出。喷射器产生的高频可压缩空气漩涡和冲击波将液体雾化成更细的液滴，并将它们分布到更大的区域，以改善与环境的混合。文中给出了这种新型喷射方案的设计细节和流场特性的初步研究，该方案是一种潜在的高速流动混合和控制应用。
This paper reports an experimental study on a liquid injector assembly integrated with an ultra-high frequency pulsed air jet that operates at 21 kHz. The active air-blasting assembly steadily injects a liquid through four mi-cro-nozzles of 0.4 mm diameters each, positioned around a 1 mm nozzle through which the pulsed actuation jet flows out at supersonic velocity. High-frequency compressible air vortexes and shock waves generated by the injector atomize the liquid stream into finer droplets and distribute them to a larger area to improve mixing with the ambiance. The paper presents the design details and preliminary studies on the flow field characteristics of this novel injection scheme, which is a potential candidate for high-speed flow mixing and control applications.