The Hydrodynamic Wake of a Surface Ship: Theoretical Foundatons

Abstract

A model for the hydrodynamic wake of a surface ship is developed. Neglecting only ambient stratification and ambient surface films, we begin with general equations and boundary conditions for the flow field and reduce the problem to a solvable one through a series of approximations. Among the assumptions are: (l) the fluid dynamics are independent of the gas particle (bubble) dynamics; (2) the ship undergoes only small motions about a uniform, mean motion; (3) the free surface elevations are small; and (4) the ship induced turbulence is significantly stronger than the ambient turbulence. With these approximation, the overal problem becomes separable into one governing the ship induced flow in otherwise still water and one governing the interaction of the background with the ship induced flow.

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Document Details

Document Type
Technical Report
Publication Date
Jun 28, 1984
Accession Number
ADB084604

Entities

People

  • R. A. Skop

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Asymptotic Series
  • Boundaries
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Coordinate Systems
  • Dynamics
  • Equations
  • Equations Of Motion
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Fluid Flow
  • Military Research
  • Surface Tension
  • Turbulence
  • Viscous Flow

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Calculus or Mathematical Analysis
  • Marine Hydrodynamics