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Numerical simulation of the cold gas dynamic spray process

Numerical simulation of the cold gas dynamic spray process A computational fluid dynamic (CFD) model of the cold gas dynamic spray process is presented. The gas dynamic flow field and particle trajectories within an oval-shaped supersonic nozzle as well as in the immediate surroundings of the nozzle exit, before and after the impact with the target plane, are simulated. Predicted nozzle wall pressure values compare well with experimental data. In addition, predicted particle velocity results at the nozzle exit are in qualitative agreement with those obtained using a side-scatter laser Doppler anemometer (LDA). Details of the pattern of the particle release into the surroundings are visualized in a convenient manner. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Thermal Spray Technology Springer Journals

Numerical simulation of the cold gas dynamic spray process

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References (30)

Publisher
Springer Journals
Copyright
Copyright © 2006 by ASM International
Subject
Chemistry; Surfaces and Interfaces, Thin Films; Tribology, Corrosion and Coatings; Materials Science; Characterization and Evaluation of Materials; Operating Procedures, Materials Treatment; Analytical Chemistry
ISSN
1059-9630
eISSN
1544-1016
DOI
10.1361/105996306X146866
Publisher site
See Article on Publisher Site

Abstract

A computational fluid dynamic (CFD) model of the cold gas dynamic spray process is presented. The gas dynamic flow field and particle trajectories within an oval-shaped supersonic nozzle as well as in the immediate surroundings of the nozzle exit, before and after the impact with the target plane, are simulated. Predicted nozzle wall pressure values compare well with experimental data. In addition, predicted particle velocity results at the nozzle exit are in qualitative agreement with those obtained using a side-scatter laser Doppler anemometer (LDA). Details of the pattern of the particle release into the surroundings are visualized in a convenient manner.

Journal

Journal of Thermal Spray TechnologySpringer Journals

Published: Oct 22, 2007

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