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Keywords:

  • drop;
  • falling drop;
  • terminal velocity;
  • two-phase medium;
  • numerical simulation;
  • fluid dynamic

Abstract

The numerical simulation in a two-phase medium of falling drops allows their velocities and shapes during the fall to be calculated. The terminal velocities and shapes for bromoform and chlorobenzene drops falling into water have been obtained. Although the method used calculates the flow inside and around the drop, it has not been possible to give results independent of the spatial discretization and the boundary effects. However, taking these influences into account, the numerical results agree with the experimental data given and the study consists of a good validation of the SURFER code used. Copyright © 2004 John Wiley & Sons, Ltd.