Numerical Modelling of Cavitation

Abstract

The objective of the present note is to provide the basic concepts of numerical modelling of cavitation. After a brief description of the cavitation phenomena, the modelling concepts are discussed. A specific attention is given to the development of a barotropic model and its integration in a 3D unsteady CFD code. Influence of numerical and physical parameters is detailed on two two-dimensional configurations (hydrofoil and venturi). Examples of calculations on various geometries (inducers and impellers) are detailed to validate robustness of the computational methodology. Modifications of internal flows due to development of cavitation are discussed and an analysis of the mechanisms leading to the head drop is presented. Simulations of cavitation instabilities in blade cascades are presented and physical mechanisms are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2006
Accession Number
ADA476503

Entities

People

  • Benoit Pouffary

Organizations

  • CNES

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Flow Rate
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Geometry
  • Mechanical Properties
  • Mechanics
  • Physics Laboratories
  • Simulations
  • Static Pressure
  • Three Dimensional
  • Turbulence
  • Turbulent Mixing
  • Two Dimensional

Readers

  • Aerodynamics.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Theoretical Analysis.