CAVITATION PHENOMENA IN LIQUIDS SUBJECTED TO ULTRASONIC WAVES.

Abstract

When a solution is subjected to a constant ultrasonic energy at a frequency of 1 Mc, two distinct states are observed. The cavitation phenomena include the vibration of the formed bubbles, the absorption of ultrasonic energy, the cavitation noise, temperature, etc. The influence of ultrasonic power, temperature, concentration and volume of solutions on the appearance of the phenomenon and the duration of the two states was determined. The chemical effects and luminescence resulting from the cavitation were also investigated, and it was noted that they are nil in one of the two states. Based on experimental results, a hypothesis was advanced suggesting that the alternating phenomenon of the two states amounts to the relaxation of gaseous and vaporous cavitations. A mathematical expression of the two durations is then proposed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1964
Accession Number
AD0429999

Entities

People

  • Maurice Degrois

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Bubbles
  • Cavitation
  • Cavitation Noise
  • Doppler Effect
  • Frequency
  • Frequency Shift
  • Luminescence
  • Noise
  • Ultrasounds
  • Vibration
  • Waves

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Marine Hydrodynamics
  • Materials Science and Engineering.