NDLI: Numerical Study of In-flight Particle Parameters in Low-Pressure Cold Spray Process

Content Provider	Springer Nature Link
Author	Ning, Xian Jin Wang, Quan Sheng Ma, Zhuang Kim, Hyung Jun
Copyright Year	2010
Abstract	A 2-D model of the low-pressure cold spray with a radial powder feeding was established using CFD software in this study. The flow field was simulated for both propellant gases of nitrogen and helium. To predict the in-flight particle velocity and temperature, discrete phase model was introduced to simulate the interaction of particle and the supersonic gas jet. The experimental velocity of copper powder with different sizes was used to validate the calculated one for low-pressure cold spray process. The results show that the computational model can provide a satisfactory prediction of the supersonic gas flow, which is consistent with the experimental Schlieren photos. It was found that similar velocity was obtained with the drag coefficient formula of Henderson and with that of Morsi and Alexander. As the shape factor was estimated, the reasonable prediction of velocity for non-spherical particle can be obtained, to compare with the experimental results.
Starting Page	1211
Ending Page	1217
Page Count	7
File Format	PDF
ISSN	10599630
Journal	Journal of Thermal Spray Technology
Volume Number	19
Issue Number	6
e-ISSN	15441016
Language	English
Publisher	Springer US
Publisher Date	2010-09-02
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	cold gas dynamic spray critical velocity in-flight particle parameters low-pressure cold spray powder property Analytical Chemistry Operating Procedures, Materials Treatment Characterization and Evaluation of Materials Materials Science Tribology, Corrosion and Coatings Surfaces and Interfaces, Thin Films
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Materials Chemistry Condensed Matter Physics

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