Nozzle Spraying Model of Combustion Thermal Spray

被引：0
|
作者：
Guo, Wenliang [1 ]
Guo, Zheng [2 ]
机构：
[1] Taiyuan Univ Technol, Coll Mech Engn, Taiyuan 030024, Shanxi, Peoples R China
[2] HSBC Bank, Hong Kong, Peoples R China
来源：
ENGINEERING SOLUTIONS FOR MANUFACTURING PROCESSES, PTS 1-3 | 2013年 / 655-657卷
关键词：
nozzle spray model; combustion thermal spray jet; spreading angle;
D O I：
10.4028/www.scientific.net/AMR.655-657.211
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The flame used in combustion flame spraying is typical of a high-temperature free jet. The flow fields of free jets are multi-phase flows that couple the mass and heat transfer. The analytical and numerical solutions to turbulent flows are engineering approximations. This work uses Prandtle's mixing-length theory to describe the flame spreading of free combustion spray jet and uses nozzle spray model to describe the distribution of the powder particles sprayed from powder nozzle to the substrate surface. The nozzle geometry and the parameters determine the distribution of the powder particles. The nozzle spray model has the same physical meaning with the jet spreading angle. Experimental measurements were carried by a high-speed CCD camera.
引用
收藏
页码：211 / +
页数：2
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