Pseudo-Steady Diffusional Growth or Collapse of Bubbles Rising in Time Dependent Pressure Fields

Abstract

A pseudo-steady convective model for bubble diffusional growth or collapse while rising in time dependent pressure fields has been developed. The bubble model assumes the neglect of added mass, history, and interfacial momentum terms. Criteria are developed to show when these terms affect the bubble motion.The pressure fields investigated are a simple hydrostatic head, a decompression hydrostatic head, and a hydrostatic head with the oscillation of the reference pressure (atmosphere above the hydrostatic head). Keywords: Diffusion equations; Velocity profiles; Bubble motion; Bubble dynamics; Ship wakes; Fluid dynamics.

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Document Details

Document Type
Technical Report
Publication Date
Mar 13, 1990
Accession Number
ADA218825

Entities

People

  • M. B. Stewart
  • M. Cerza
  • O. M. Griffin

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Barometric Pressure
  • Boundary Layer
  • Buoyancy
  • Coefficients
  • Collapse
  • Decompression
  • Diffusion Coefficient
  • Equations
  • Fluid Dynamics
  • Frequency
  • Hydrostatic Pressure
  • Mass Transfer
  • Momentum
  • Oscillation
  • Physical Properties
  • Pressure Gradients
  • Radial Velocity

Readers

  • Fluid Dynamics.
  • Underwater engineering and Marine Technology.