A NUMERICAL MODEL FOR THREE-DIMENSIONAL BUBBLE DYNAMICS IN COMPLEX FLOW CONFIGURATIONS

In most practical configurations where cavitation occurs, bubbles are not in a uniform or axisymmetric flow field and existing bubble dynamic models, either spherical or axisymmetric, are only more or less appropriate approximations. The paper describes on-going studies which consider the fully 3-dimensional bubble dynamics problem. The interaction between a growing, deforming and collapsing bubble near a boundary and/or in a non-uniform flow field is simulated numerically using a Boundary Integral Method. The collapse of a large bubble near a solid flat plate in a gravity field is considered as a first example. The plate orientation relative to the gravity field significantly influences the 3-dimensional bubble shape and behaviour. The paper shows as and example the influence of the various geometric or flow parameters on the bubble dynamics.

• Supplemental Notes:
  • American Towing Tank Conference, 22nd, held St. Johns, Newfoundland, Canada, 8-11 August, 1989; Proceedings. Hosted by the National Research Council Canada, Institute for Marine Dynamics. p.61 [7 p., 11 ref., 8 fig.]
• Authors:
  • Chahine, G L
• Publication Date: 1989

Language

• English

Subject/Index Terms

• TRT Terms: Bubbles; Cavitation (Mechanics); Mathematical models
• Uncontrolled Terms: Numerical models
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00698011
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM