A Note on the Decay of Body-Induced Hydrodynamic Disturbances in a Towing Tank.

Abstract

The decay characteristics of disturbances generated from towing an axisymmetric body in a towing tank are estimated. The intensities of the mean velocity defect in a turbulent wake, wake turbulence, and a turbulent two-dimensional line vortex are estimated to be respectively of the order of .01 x U and .001 x U at 32 and 320 seconds, after the passage of a body which is 20 inches (50 cm) in diameter and towed at U = 50 ft/sec (15 m/s). Sample calculations of the influence of flow disturbances in altering the body's axisymmetric pressure distribution are included. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1977
Accession Number
ADA042883

Entities

People

  • David W Taylor
  • Ming-shun Chang

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Axisymmetric
  • Boundary Layer
  • Diameters
  • Flow
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Geometry
  • Hydrodynamics
  • Intensity
  • Mechanics
  • New York
  • Perturbations
  • Physics
  • Pressure Distribution
  • Turbulent Flow
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Logistics and Supply Chain Management.