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Formation and breakup patterns of falling droplets

Sharafatmandjoor, S ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1080/10407782.2015.1023153
  3. Publisher: Taylor and Francis Ltd , 2015
  4. Abstract:
  5. Some interface front patterns of falling droplets are studied via direct numerical solution of the full Navier-Stokes equations governing the system of droplets and the ambient surrounding media as a single-fluid model. We focus on the mutual interactions of the effects of characterizing nondimensional parameters on the formation and break-up of large cylindrical droplets. The investigation of droplet cross sections and deformation angles shows that for moderate values of the Atwood number, increasing the Eötvös number explicitly increases the deformation rate in formation and breakup phenomena. Otherwise, increasing the Ohnesorge number basically amplifies the viscous effects
  6. Keywords:
  7. Deformation ; Drop breakup ; Drops ; Viscous flow ; Atwood numbers ; Breakup patterns ; Deformation rates ; Falling droplet ; Mutual interaction ; Non-dimensional parameters ; Numerical solution ; Single fluid model ; Navier Stokes equations
  8. Source: Numerical Heat Transfer; Part A: Applications ; Volume 68, Issue 9 , Jun , 2015 , Pages 1023-1030 ; 10407782 (ISSN)
  9. URL: http://www.tandfonline.com/doi/full/10.1080/10407782.2015.1023153