The Effects of Vortex Generating Fins and Jets on the Crossflow Separation of a Submarine in a Turning Maneuver

Abstract

The effects of vortex generating fins and jets on the crossflow separation of A 688 class submarine in a turning maneuver was studied. The jets and fins were placed along the top and bottom centerlines of the submarine. Fin size, location, and orientation was studied. Jet strength and orientation were also studied. Oil flow visualization was used to document changes in flow separation location, and forces and moments were measured to quantify vortex generator effectiveness. The fins were found to be extremely effective in delaying crossflow separation and thus changed the hydrodynamic forces and moments drastically. The jets, on the other hand, were less effective. Boundary layer, Control, Three dimensional separation, Turbulence

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Document Details

Document Type
Technical Report
Publication Date
May 21, 1993
Accession Number
ADA266047

Entities

People

  • Roger L. Simpson
  • Stergios Liapis
  • Todd G. Wetzel

Organizations

  • Virginia Tech

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Space

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aircrafts
  • Boundary Layer
  • Computational Fluid Dynamics
  • Control Systems
  • Data Acquisition
  • Energy Consumption
  • Engineering
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Mechanics
  • Hydrodynamics
  • Measurement
  • Naval Architecture
  • Physics Laboratories
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Nanofabrication and Microfabrication.
  • Petroleum Engineering