Flow Visualization of the Airwake of an Oscillating Generic Ship Model

Abstract

An experimental flow visualization study was done on an oscillating generic ship model in the Low Speed Wind Tunnel Facility at the Naval Postgraduate School in Monterey, California. The purpose was to visually analyze the flowfield around the model while simulating ship motion in rough seas, with a correspondingly modelled open-ocean atmospheric boundary layer. The two flow visualization techniques utilized were neutral density helium bubbles and a liquid aerosol, each technique providing varying degrees of on-body and off-body analysis. Limited success was achieved with the aerosol, but the helium bubbles produced excellent photographic results and an accurate visualization of the oscillating model's flow field was achieved.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1987
Accession Number
ADA190957

Entities

People

  • John L. Biskaduros

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Cameras
  • Engineering
  • Flow
  • Flow Fields
  • Flow Visualization
  • Fluid Mechanics
  • Frequency
  • Measurement
  • Photographs
  • Photography
  • Ship Models
  • Ship Motion
  • Simulations
  • Turbulence
  • United States
  • Wind Tunnels

Readers

  • Aerodynamics/Aeronautics.
  • Computational Modeling and Simulation
  • Fluid Dynamics.