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Smoothed Particles Hydrodynamics Method for Interaction Between Multi-Droplets and Substrate

[+] Author Affiliations
M. Y. Zhang, H. Zhang, L. L. Zheng

State University of New York at Stony Brook

Paper No. IMECE2006-14073, pp. 457-461; 5 pages
doi:10.1115/IMECE2006-14073
From:
  • ASME 2006 International Mechanical Engineering Congress and Exposition
  • Heat Transfer, Volume 3
  • Chicago, Illinois, USA, November 5 – 10, 2006
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 0-7918-4786-1 | eISBN: 0-7918-3790-4
  • Copyright © 2006 by ASME

abstract

The smoothed particle hydrodynamics (SPH) method, one of meshfree methods, is developed to simulate the interaction between multi-droplets and substrate with solidification. However, the SPH method for this complicated problem needs a large amount of computing time, since it has to use a large number of the SPH particles to represent multidrops and substrate. All-pair search and linked list algorithms are popular in the neighbor search, which is the most time consuming part of the SPH calculation. Both algorithms are tested in this paper. For the solidification process, since the volume of the melt is decreased continuously, a new method is proposed to speed up the SPH calculation. The new treatment is used to handle the particles near the free surface and near the solidification interface Multi-droplets impinging on a smooth substrate in 2D and 3D are simulated to demonstrate the capability of current numerical method on simulating the spreading and solidification of multi-droplets.

Copyright © 2006 by ASME

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