Effects of non-dimensional parameters on formation and break up of cylindrical droplets

Taeibi Rahni, M ; Sharif University of Technology | 2004

46 Viewed
  1. Type of Document: Article
  2. DOI: 10.1115/ht-fed2004-56879
  3. Publisher: American Society of Mechanical Engineers , 2004
  4. Abstract:
  5. 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, twodimensional 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
  6. Keywords:
  7. Direct Numerical Simulation (DNS) ; Droplet Break up ; Droplet Formation ; One-fluid Model ; Two-phase Flow
  8. Source: 2004 ASME Heat Transfer/Fluids Engineering Summer Conference, HT/FED 2004, Charlotte, NC, 11 July 2004 through 15 July 2004 ; Volume 2 B , 2004 , Pages 1339-1342
  9. URL: https://asmedigitalcollection.asme.org/HT/proceedings/HT-FED2004/46911/1339/364559