Effect of a conical separation region on cold gas-dynamic spraying

被引:0
作者
A. P. Alkhimov
V. F. Kosarev
S. V. Klinkov
A. A. Sova
机构
[1] Russian Academy of Sciences,Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch
来源
Journal of Applied Mechanics and Technical Physics | 2012年 / 53卷
关键词
supersonic jet; conical separation region; impact of particles onto the target; cold gasdynamic spraying;
D O I
暂无
中图分类号
学科分类号
摘要
Results of an experimental and numerical study of the effect of conical separation regions artificially generated ahead of the target owing to impingement of a supersonic two-phase jet on the character of motion of particles smaller than 1 µm in diameter and on the process of cold gas-dynamic spraying as a whole are presented. Calculations predict a noticeable effect of the conical separation region artificially generated ahead of the target on the character of particle motion; in particular, the maximum velocity of the particle impact onto the target is found to be greater than that during spraying without the spike. Thus, the possibility of formation of a coating from particles smaller than 1 µm in diameter is demonstrated, and recommendations for implementation of the process in practice are given.
引用
收藏
页码:948 / 953
页数:5
相关论文
共 8 条
[1]  
Yanenko N. N.(1981)Changes in the Wave Structure in a Supersonic Two-Phase Flow around a Body Dokl. Akad. Nauk SSSR 260 821-825
[2]  
Alkhimov A. P.(2012)Conical Separation Zone Formation at Impingement of Supersonic Jet on Obstacle under Cold Spraying Teplofiz. Aeromekh 19 257-263
[3]  
Nesterovich N. I.(1972)An Investigation of Particle Trajectories in Two-Phase Flow Systems J. Fluid Mech 55 193-208
[4]  
Alkhimov A. P.(undefined)undefined undefined undefined undefined-undefined
[5]  
Kosarev V. F.(undefined)undefined undefined undefined undefined-undefined
[6]  
Klinkov S. V.(undefined)undefined undefined undefined undefined-undefined
[7]  
Morsi S. A.(undefined)undefined undefined undefined undefined-undefined
[8]  
Alexander A. J.(undefined)undefined undefined undefined undefined-undefined