Numerical Simulation of Gas-Particle Two Phase Flow in the Process of Cold Spraying Aluminum Zinc-Base Alloy Powder

被引：1
|
作者：
Liu, Chuanshao [1 ]
Cheng, Jiangwei [1 ]
Zheng, Jianxin [1 ]
机构：
[1] Henan Polytech Univ, Jiaozuo 454003, Peoples R China
来源：
ADVANCES IN ENGINEERING DESIGN AND OPTIMIZATION, PTS 1 AND 2 | 2011年 / 37-38卷
关键词：
Cold spraying; Particle velocity; Gas-particle two phase flow; Numerical simulation;
D O I：
10.4028/www.scientific.net/AMM.37-38.735
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The gas velocity and particle velocity in and out of the nozzle have great influence on the coating effect in the process of cold spray. An axis-symmetric two-dimensional mathematical model was presented to study the flow field in and out of cold spray nozzle, and the effect of different pressure, temperature, spraying distance and particle diameter on gas axial velocity and particle velocity were researched. The simulation results showed that the gas axial velocity and particle velocity increased when the gas pressure and temperature were increased, spray distance had little effect on the flow field in the nozzle, and small diameter particle was more easily accelerated.
引用
收藏
页码：735 / 738
页数：4
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