空化射流喷嘴结构设计及流场数值模拟  

Design of Cavitation Jet Nozzles and Numerical Simulation of Flow Field

作　　者：庄辛东 李秋龙 王其伟 ZHUANG Xindong;LI Qiulong;WANG Qiwei(Shandong Lingong Construction Machinery Co.,Ltd.,Linyi 276023)

机构地区：[1]山东临工工程机械有限公司,临沂276023

出　　处：《现代制造技术与装备》2025年第3期49-51,共3页Modern Manufacturing Technology and Equipment

摘　　要：为研究新型喷嘴空化效果,应用FLUENT软件对喷嘴的全流场进行数值模拟。结果表明:空化区域最初形成在喷嘴的谐振腔内壁面,并沿着流场轴线呈对称状分布;随射流压强增加,谐振腔内部及扩散段的气相体积分数随之增大。多压强水平条件下,射流轴心动压强和轴心速度分布规律具有相似性。To study the cavitation effect of a new type of nozzle,FLUENT software was applied to numerically simulate the entire flow field of the nozzle.The results indicate that the cavitation region initially forms on the inner wall of the resonant cavity of the nozzle and is symmetrically distributed along the axis of the flow field;As the jet pressure increases,the gas phase volume fraction inside the resonant cavity and in the diffusion section also increases.Under conditions of multiple pressure levels,the distribution patterns of jet axial cardiac pressure and axial velocity exhibit similarities.

关 键 词：空化射流 喷嘴 数值模拟 

分 类 号：TH137[机械工程—机械制造及自动化]