Numerical study on the effect of nozzle dimension on particle distribution in cold spraying

被引：26

作者：

Suo, X. K. ^{[1
]}

Liu, T. K. ^{[1
]}

Li, W. Y. ^{[2
]}

Suo, Q. L. ^{[3
]}

Planche, M. P. ^{[1
]}

Liao, H. L. ^{[1
]}

机构：

[1] Univ Technol Belfort Montbeliard, LERMPS, F-90010 Belfort, France

[2] Northwestern Polytech Univ, Shaanxi Key Lab Frict Welding Technol, Xian 710072, Shaanxi, Peoples R China

[3] Beijing Univ Aeronaut & Astronaut, Sch Jet Prop, Beijing 100191, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2013年 / 220卷

关键词：

Cold spraying; CFD; Particle distribution; Particle velocity; DEPOSITION CHARACTERISTICS; IMPACT VELOCITY; OPTIMAL-DESIGN; KINETIC SPRAY; TEMPERATURE; VALIDATION; SUBSTRATE; COATINGS; FLOW;

D O I：

10.1016/j.surfcoat.2012.09.029

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The height of rectangular nozzle's exit, throat and powder injector is changed systematically while the nozzle expansion ratio remains constant in order to study their effects on the distribution and velocity of magnesium (Mg) particles using three-dimensional models of cold spraying system. The effect of particle size on the particle distribution is also studied. It is found that the particle distribution is mainly influenced by the turbulent kinetic energy of the carrier gas flow at the nozzle exit. Changing the height of the exit or throat can control the particle distribution. The height of powder injector only influences the particle velocity. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：107 / 111

页数：5

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