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- Publisher
- Springer Journals
- Copyright
- Copyright © 2010 by ASM International
- Subject
- Materials Science; Surfaces and Interfaces, Thin Films; Tribology, Corrosion and Coatings; Characterization and Evaluation of Materials; Operating Procedures, Materials Treatment; Analytical Chemistry
- ISSN
- 1059-9630
- eISSN
- 1544-1016
- DOI
- 10.1007/s11666-010-9530-z
- Publisher site
- See Article on Publisher Site
Abstract
In an effort to corroborate theoretical and experimental techniques used for cold spray particle velocity analysis, two theoretical and one experimental methods were used to analyze the operation of a nozzle accelerating aluminum particles in nitrogen gas. Two-dimensional (2D) axi-symmetric computations of the flow through the nozzle were performed using the Reynolds averaged Navier-Stokes code in a computational fluid dynamics platform. 1D, isentropic, gas-dynamic equations were solved for the same nozzle geometry and initial conditions. Finally, the velocities of particles exiting a nozzle of the same geometry and operated at the same initial conditions were measured by a dual-slit velocimeter. Exit plume particle velocities as determined by the three methods compared reasonably well, and differences could be attributed to frictional and particle distribution effects.
Journal
Journal of Thermal Spray Technology – Springer Journals
Published: Aug 6, 2010