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The Discontinuous Finite Element Method for Polycrystalline Grain Growth With Convection

[+] Author Affiliations
Xin Ai, Y. Shu, Ben Q. Li

Washington State University

Paper No. IMECE2005-80128, pp. 903-912; 10 pages
doi:10.1115/IMECE2005-80128
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Heat Transfer, Part B
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 0-7918-4222-3 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

In this paper, a numerical study of the convection effect on polycrystalline grain growth is performed. The coupled two-dimensional polycrystalline phase field model, energy equation and Navier-Stokes equations are solved, which is based on the discontinuous Galerkin finite element method. The numerical algorithm is validated, and the effect of the external convection flow is examined for growth of grains with different orientation. Results show that the forced convection flow affects the phase and orientation field distribution by changing the temperature gradient in the solid/liquid interface.

Copyright © 2005 by ASME

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