The FRAM Cavitation Code.

Abstract

This report describes the computer code FRAM. The code computes the pressure and velocity in a fluid-half space where bulk cavitation may occur. The cavitation results from an exponentially decaying pressure wave from an underwater explosion which travels to the surface and is reflected as a tension wave. Because the water does not sustain tension, a cavitated region is formed. The cavity subsequently closes under gravity (lower closing shock) and accretion of vapor particles (upper closing shock). The theory is summarized herein. Capabilities and limitations are discussed and a description of the source code is included. Keywords: Bulk cavitation; Characteristic analysis; Surface ship response; Underwater explosions.

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Document Details

Document Type
Technical Report
Publication Date
May 15, 1986
Accession Number
ADA181193

Entities

People

  • M. Rehak
  • R. Kagel
  • R. Smilowitz

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Barometric Pressure
  • Cavitation
  • Classification
  • Computer Programs
  • Computers
  • Contractors
  • Coordinate Systems
  • Equations
  • Explosions
  • Free Field
  • Governments
  • Momentum
  • Particles
  • Physical Properties
  • Procedures (Computers)
  • Underwater Explosions
  • Waves

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Marine Propulsion Engineering and Naval Architecture
  • Oceanography.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster