Wind Tunnel Experiments on Wakes in Stratified Flow Including Modeling Criteria and Development of Experimental Equipment

Abstract

Wind tunnel experiments were conducted on dimensions of the turbulent wake from an 8 inch disk model in thermally stratified flow. Results were interpreted in terms of densimetric Froude number as the modeling criterion. The substantial agreement with reported hydrodynamic experiments shows the potential for using wind tunnels to study submarine wakes in stratified flow. An additional modeling criterion for vertical density gradient based on momentum flux may be important for momentumless wakes. Development of experimental equipment needed to obtain uniform wind tunnel airstreams at very low speeds with thermal stratification is described.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1976
Accession Number
ADA030808

Entities

People

  • Gordon H. Strom

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Space

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Anemometers
  • Boundary Layer
  • Flow Fields
  • Fluid Dynamics
  • Froude Number
  • Generators
  • Layers
  • Lepidoptera
  • Measurement
  • Mechanics
  • Propellers
  • Reynolds Number
  • Smoke Generators
  • Temperature Gradients
  • Turbulent Mixing
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.