Acoustic Cavitation Inception in Water and in Insonated Root Tips.

Abstract

An analysis of two aspects of air bubble nucleation is presented. Part I describes the role of particulate matter in acoustic cavitation inception; Part II describes the growth of air bubbles by rectified diffusion in insonated root tips. It was discovered that a modification of some earlier analyses of cavity nucleation from motes lead to a correct prediction of the variation of the acoustic cavitation inception threshold for kilohertz frequencies in water for a range of physical variables. It was also discovered that acoustic emissions from insonated root tips could be attributed to the growth of air bubbles by rectified diffusion. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 15, 1978
Accession Number
ADA060084

Entities

People

  • Lawrence A. Crum

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Emissions
  • Air Force
  • Chemistry
  • Differential Equations
  • Dissolved Gases
  • Equations
  • Fluid Dynamics
  • Fluids
  • Frequency
  • Measurement
  • Military Research
  • New York
  • Particulate Matter
  • Physical Chemistry
  • Physical Properties
  • Surface Properties
  • Surface Tension

Fields of Study

  • Environmental science

Readers

  • Aerodynamics.
  • Auditory Neuroscience/Auditory Physiology.
  • Underwater engineering and Marine Technology.