COLLAPSE OF AN INITIALLY SPHERICAL VAPOR CAVITY IN THE NEIGHBORHOOD OF A SOLID BOUNDARY,

Abstract

Vapor bubble collapse problems lacking spherical symmetry are solved using a numerical method designed especially for these problems. Viscosity and compressibility in the liquid are neglected. The method uses finite time steps and features an iterative technique for applying the boundary conditions at infinity directly to the liquid at a finite distance from the free surface. Two specific cases of initially spherical bubbles collapsing near a plane solid wall were simulated: a bubble initially in contact with the wall, and a bubble initially half its radius from the wall at the closest point. It is shown that the bubble develops a jet directed towards the wall rather early in the collapse history. Free surface shapes and velocities are presented at various stages in the collapse. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1970
Accession Number
AD0708453

Entities

People

  • Milton S. Plesset
  • Richard B. Chapman

Organizations

  • California Institute of Technology

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Boundaries
  • Collapse
  • Compressive Properties
  • Lepidoptera
  • Mechanical Properties
  • Physical Properties
  • Symmetry
  • Viscosity

Readers

  • Fluid Dynamics.
  • Underwater engineering and Marine Technology.