射流抛光流场特性分析

Q4 Physics and Astronomy

光学技术 Pub Date : 2014-01-01 DOI:10.3788/GXJS20144004.0376

罗银川 Luo Yinchuan, 李秀龙 Li Xiulong, 张. Z. Yang, 张蓉竹 Zhang Rongzhu, 杨李茗 Yang Liming

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引用次数: 3

摘要

通过对冲击射流流场特性的分析，建立了冲击角、间隙距离、射流速度与壁面压力、速度之间的数学关系。通过定量计算分析了不同参数对射流分布的影响，结果表明，壁面压力、速度与出口压力、速度成线性正比关系。当冲击距离大于喷管直径的9.6倍时，壁面压力和速度随冲击距离的增加而减小。当冲击距离增加到喷嘴直径的15倍时，峰值压力降至喷嘴压力的0.54倍。并且随着冲击角的减小而减小。当碰撞角度为90°、60°、45°时，分别得到ps=0.95p0、0.74p0、0.475p0, um02= 0.960 u0、0.8u0、0.67u0。

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Analysis of flow field characteristics in fluid jet polishing

By analyzing the flow field characteristics of impinging jet,mathematical relationship between the impact angle,stand-off distance,jet velocity and the pressure,velocity on wall is established.The influence of different parameters on fluid jet distribution is analyzed by quantitative calculate,the results indicate that the pressure and velocity on wall with the outlet pressure,velocity is linearly proportional.When the impact distance is greater than 9.6times of the diameter of nozzle,the pressure and velocity on wall decrease with the increasing of stand-off distance.The peak pressure reduces to 0.54times of the pressure of spout when the impact distance increases to 15times of the diameter of nozzle.And they decrease with the decreasing of impact angle.When impact angles are 90°,60°,45°,ps=0.95p0,0.74p0,0.475p0,and um02=0.96u0,0.8u0,0.67u0are got respectively.

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来源期刊

光学技术 Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

0.60

自引率

0.00%

发文量

6699

期刊介绍： The predecessor of Optical Technology was Optical Technology, which was founded in 1975. At that time, the Fifth Ministry of Machine Building entrusted the School of Optoelectronics of Beijing Institute of Technology to publish the journal, and it was officially approved by the State Administration of Press, Publication, Radio, Film and Television for external distribution. From 1975 to 1979, the magazine was named Optical Technology, a quarterly with 4 issues per year; from 1980 to the present, the magazine is named Optical Technology, a bimonthly with 6 issues per year, published on the 20th of odd months. The publication policy is: to serve the national economic construction, implement the development of the national economy, serve production and scientific research, and implement the publication policy of "letting a hundred flowers bloom and a hundred schools of thought contend".