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Numerical Investigation for Particles Impacting and Layering for Surface Treatment

[+] Author Affiliations
Kh. Fataoui, B. Pateyron, M. ElGanaoui

University of Limoges, Limoges, France

Paper No. FEDSM2008-55223, pp. 397-401; 5 pages
doi:10.1115/FEDSM2008-55223
From:
  • ASME 2008 Fluids Engineering Division Summer Meeting collocated with the Heat Transfer, Energy Sustainability, and 3rd Energy Nanotechnology Conferences
  • Volume 1: Symposia, Parts A and B
  • Jacksonville, Florida, USA, August 10–14, 2008
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-4840-1 | eISBN: 0-7918-3832-3
  • Copyright © 2008 by ASME

abstract

The particles projected by arc plasma are generally of micrometric size (ranging in general between 10 and 100 μm) in conventional projection and their impact velocity ranges from 50 to 350 m/s. characteristic times for the formation of a splat are very short: less than 5 μs for the duration of spreading of the particle melted with a solidification which can start before the end of the spreading stage and continues in general between 0.8 and 10 μs after the impact. This work is devoted to studying numerically this complex coupling. The model is firstly validated in comparison with available results of particles spreading (large size and low impact velocity < 1 m/s).

Copyright © 2008 by ASME

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