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Effects of Non-Dimensional Parameters on Formation and Break Up of Cylindrical Droplets

[+] Author Affiliations
Mohammad Taeibi-Rahni

Sharif University of Technology, Tehran, Iran

Shervin Sharafatmand

Azad University, Tehran, Iran

Paper No. HT-FED2004-56879, pp. 1339-1342; 4 pages
doi:10.1115/HT-FED2004-56879
From:
  • ASME 2004 Heat Transfer/Fluids Engineering Summer Conference
  • Volume 2, Parts A and B
  • Charlotte, North Carolina, USA, July 11–15, 2004
  • Conference Sponsors: Heat Transfer Division and Fluids Engineering Division
  • ISBN: 0-7918-4691-1 | eISBN: 0-7918-3740-8
  • Copyright © 2004 by ASME

abstract

The consistent behavior of non-dimensional parameters on the formation and break up of large cylindrical droplets has been studied by direct numerical simulations (DNS). A one-fluid model with a finite difference method and an advanced front tracking scheme was employed to solve unsteady, incompressible, viscous, immiscible, multi-fluid, two-dimensional Navier-Stokes equations. This time dependent study allows investigation of evolution of the droplets in different cases. For moderate values of Atwood number (AT), increasing Eotvos number (Eo) explicitly increases the deformation rate in both phenomena. Otherwise, raising the Ohnesorge number (Oh) basically amplifies the viscous effects.

Copyright © 2004 by ASME

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