Measurements of the Three Components of the Water Flow Around a Hydrodynamic Model in a Towing Tank with a 2D Laser Doppler Velocimeter System

Abstract

Measuring the three components of a water flow in a towing tank can be done by using a two component Laser Doppler Velocimeter. This device is used to measure the velocity distribution and to study the boundary layer around the back half of a 1/12th scale model of a 22.5 meter fishing boat. Measurements are performed from well out of the boundary layer in the potential flow up to 0.5 mm of the hull, for two speeds. Some 3D stream lines are measured at the boundary layer limit

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 23, 1992
Accession Number
ADP008961

Entities

People

  • C. Couchman
  • D. R. Rajaona

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Fiber Optics
  • Flow
  • Fluid Dynamics
  • Fluid Mechanics
  • Froude Number
  • Hydrodynamics
  • Layers
  • Measurement
  • Propellers
  • Reynolds Number
  • Scale Models
  • Surface Roughness
  • Turbulence
  • Turbulent Flow
  • Viscous Flow

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Marine Hydrodynamics

Technology Areas

  • Directed Energy