一种新型非淹没空化喷嘴的性能研究  

Study on the Performance of a New Non-submerged Cavitation Nozzle

作　　者：杜鹏[1] 王灿[1] DU Peng;WANG Can(School of Mechatronics Engineering,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学机电工程学院,安徽淮南232001

出　　处：《机械工程与自动化》2025年第1期38-39,共2页Mechanical Engineering & Automation

摘　　要：在同样的条件下,空化射流比普通水射流具有更大的冲击强度。为扩展空化喷嘴的应用场合,现将环流层与中心体喷嘴组合成为一种新型非淹没空化喷嘴。利用fluent软件,基于Mixture多相流模型和RNG k-ε湍流模型,研究不同环流层厚度L和入口压力p对新型非淹没空化喷嘴射流速度、气相体积的影响。研究结果表明:加入环流层后有效缓解了空泡在空气中溃灭的速度,显著增加了射流的空化能力;入口压力显著影响喷嘴最大速度核心区和气相体积分布。该研究结果丰富了有关空化射流的高效应的理论基础。Under the same conditions,the cavitation jet has greater impact strength than the ordinary water jet.In order to expand the application of cavitation nozzle,the circulation layer and the central body nozzle are combined into a new type of non-submerged cavitation nozzle.Using fluent software,based on Mixture multiphase flow model and RNG k-εturbulence model,the effects of different circulation layer thickness L and inlet pressure p on the jet velocity and gas phase volume of the new non-submerged cavitation nozzle were studied.The results show that the addition of the circulation layer effectively alleviates the collapse speed of the cavitation bubble in the air and significantly increases the cavitation ability of the jet.The inlet pressure significantly affects the maximum velocity core area and gas volume distribution of the nozzle.The results of this study enrich the theoretical basis of the high effect of cavitation jet.

关 键 词：喷嘴 非淹没 空化射流 数值模拟 结构优化 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]