Modeling and Control of Large Eddies Generated by Maneuvering Self-Propelled Bodies in Stratified Fluids

Abstract

Our experiments and theoretical analysis show that when a submerged self-propelled vehicle makes a maneuver in a stratified fluid, e.g., accelerates/decelerates or changes the direction of its motion, this leads to the formation of unusually large horizontal eddies of the size of up to several kilometers and with decay times of several days. It is also shown that for vertical background shear typical for the upper ocean, the shear itself only partly suppresses the eddy formation and reduces their decay times, which still remain significantly large. Such eddies may have potentially important applications for submarine detection and have not been studied previously.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2001
Accession Number
ADA389806

Entities

People

  • Don L. Boyer
  • Sergey I. Voropayev

Organizations

  • Arizona State University

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Angular Momentum
  • Bodies
  • Detection
  • Engineering
  • Flow
  • Intensity
  • Intervals
  • Linear Momentum
  • Momentum
  • Self Propelled
  • Shear Flow
  • Solid Bodies
  • Stratified Fluids
  • Submarines
  • Thin Walls
  • Time Intervals
  • Vehicles

Readers

  • Acoustical Oceanography.
  • Educational Psychology
  • Sensor Fusion and Tracking Systems.