矩形高速流场的材料去除特性  

Material removal characteristics analysis of rectangular high-speed flow field in fluid jet polishing

作　　者：芈绍桂 罗银川[2] 李风雨[2] 张蓉竹[2] 杨李茗[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900 [2]四川大学电子信息学院,成都610064

出　　处：《强激光与粒子束》2016年第7期36-41,共6页High Power Laser and Particle Beams

基　　金：中国工程物理研究院双百人才基金项目(ZX08024);四川省教育厅创新团队资助项目(13TD0048)

摘　　要：为了提高射流抛光的加工效率,设计了一种矩形喷嘴结构,基于并行去除方式来提高工件的去除效率。根据流体力学基本理论,分析了矩形喷嘴冲击射流流场的结构特性,并对其流场分布进行了定量计算。基于射流去除理论,建立了矩形喷嘴的材料去除理论模型,并对去除量分布进行了计算与比较。详细分析了矩形喷嘴结构参数与去除量之间的关系,在此基础上对矩形喷嘴进行了优化,结果表明,矩形喷嘴长宽比控制在10左右能够得到很好的去除效果。In order to improve the efficiency of fluid jet polishing(FJP),the rectangle-nozzle structure was proposed to improve the removal efficiency in parallel.According to principles of fluid dynamics,the flow field characteristic of rectangle-nozzle structure was analyzed theoretically and the flow field distribution was calculated.Based on jet removal theory,the theoretical material removal models of rectangle-nozzle model were established,and removal distributions were calculated and compared.The relationship between rectangle-nozzle structure parameters and removal was analyzed in detail.Based on above results,the rectangle-nozzle was optimized.The results show that when the rectangle-nozzle length-width ratio be controlled to 10 or so can obtain better removal effect.

关 键 词：射流 矩形喷嘴 高速流场 长宽比 去除率 

分 类 号：TP60[自动化与计算机技术—控制理论与控制工程]