A Multiple-Scales Partial Solution of the Pulse-Forced Rayleigh-Plesset Equation of Cavitation Bubble Dynamics

Abstract

A partial multiple scales analysis of the forced Rayleigh Plesset equation of cavitation bubble dynamics is performed. Previous studies of cavitation inception on hemispherical headforms have revealed the existence of bubble ring cavitation on hemispherical headforms having a laminar separation region. Nuclei passing through the low pressure region that exists prior to the separation bubble experience vaporous growth which is characterized by two time scales. The forcing function pulse which acts on the nuclei is characterized by the laboratory time Tau which varies slowly compared to the characteristic bubble time Tau which characterizes the response time of a typical microscopic cavitation nucleus.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1988
Accession Number
ADA193733

Entities

People

  • B. B. Baker
  • B. R. Parkin

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Autonomous Systems
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Differential Equations
  • Equations
  • Fluid Dynamics
  • Fluid Flow
  • Free Stream
  • Partial Pressure
  • Pressure Distribution
  • Quadratic Equations
  • Reynolds Number
  • Stagnation Point
  • Static Pressure
  • Turbulent Mixing
  • Vapor Pressure

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Fluid Mechanics and Fluid Dynamics.
  • Underwater engineering and Marine Technology.