Cavitation Inception Observations on Two Axisymmetric Headforms,

Abstract

Cavitation inception observations on two axisymmetric headforms were made in the DTNSRDC 36-inch water tunnel. The results indicate that cavitation inception on a headform with natural flow transition is significantly affected by the air content of the water. The effect of air content on cavitation inception on a headform with laminar separation is less pronounced. Visible cavitation inception never occurred at the locations of minimum static pressure but was observed to occur in the region of natural transition and the separated shear layer following laminar separation. It is concluded that both the viscous effects and cavitatable microbubble population are extremely important parameters governing the cavitation inception process. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1977
Accession Number
ADA050138

Entities

People

  • David W Taylor
  • Nicholas Santelli
  • Thomas T. Huang

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Space

DTIC Thesaurus Topics

  • Barometric Pressure
  • Boundary Layer
  • Engineering
  • Fluid Dynamics
  • Geometry
  • Laminar Boundary Layer
  • Layers
  • Measurement
  • Pressure Distribution
  • Pressure Gradients
  • Pressure Measurement
  • Static Pressure
  • Surface Properties
  • Turbulent Flow
  • Turbulent Mixing
  • Vapor Pressure
  • Water Tunnels

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Underwater engineering and Marine Technology.