Artificial Supercavitation. Physics and Calculation

Abstract

This lecture is devoted to the basic physical properties and the calculation methods of the artificial cavitation (ventilation) flows. Main attention is paid to the three-dimensional ventilated supercavities past the disk and blunted cavitators. Derivation of approximate equations of the axially symmetric supercavities with using the theorem of momentum and also the asymptotic theory of slender body is presented. The G. V. Logvinovich independence principle of the cavity expansion is stated and grounded. It gives a simple and general method of investigating the unsteady problems. Calculation of the ventilated cavities has some peculiarities caused by gravity effect presence of the cavitator angle of attack and taking account of balance between the gas-supply into the cavity and the gas-leakage from the cavity. They are discussed here as well.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2001
Accession Number
ADP012080

Entities

People

  • Vladimir N. Semenenko

Organizations

  • National Academy of Sciences of Ukraine

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aspect Ratio
  • Bodies
  • Boundary Value Problems
  • Buoyancy
  • Computer Simulations
  • Coordinate Systems
  • Elastic Properties
  • Experimental Data
  • Froude Number
  • Gas Flow
  • Geometric Forms
  • Hilsch Tubes
  • Mechanical Properties
  • Physical Properties
  • Radial Velocity
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Fluid Dynamics.
  • Marine Propulsion Engineering and Naval Architecture