Marine Vortices and Their Computation

Abstract

Some of the physics involved in marine vortices and their generation for surface ships and submarines is examined in this paper. Surface ships can generate bow, bilge, and stem vortices from the hull in addition to vortices from any appendages or protrusions, such as bilge keels and shafts. Submarines, with their axially symmetric hull forms, often have more benign flow fields than surface ships, but generated vortices can have a significant influence on the behavior of the vehicle. The ability to compute such vortical flows has advanced rapidly and progress that has been made in computing such flows with Reynolds Averaged Navier-Stokes (RANS) solvers is discussed. Some of the areas where RANS computations are being used for surface ships and submarines are described and an indication is given of where the naval community is in its ability to accurately predict these complex flow phenomena.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2003
Accession Number
ADA418982

Entities

People

  • Joseph J. Gorski

Organizations

  • Naval Surface Warfare Center Carderock Division

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Computations
  • Databases
  • Equations
  • Flow Fields
  • Flow Separation
  • Fluid Flow
  • Froude Number
  • Geometry
  • Hulls (Marine)
  • Hydrodynamics
  • Leading Edges
  • Navy
  • Secondary Flow
  • Ship Hulls
  • Turbulent Mixing

Readers

  • Computational Fluid Dynamics (CFD)
  • Fluid Mechanics and Fluid Dynamics.
  • Naval Architecture and Marine Engineering.