Analytical Modeling of Random Thermal Fluctuations in the NORDA High- Frequency Sound Scattering Facility

Abstract

An analytical study is presented of the laminar and turbulent flow fields that result from natural convection created by cooled or heated arrays of tubular elements immersed in water. The study is concerned in particular with the methods used to create turbulence in the NORDA high-frequency sound scattering facility and many numerical results are given that pertain to that application. The report discusses the initially laminar thermal plume that rises from a line source of heat in water, the instability of this plume, the eventual turbulent form of the plume, plume-plume interactions, and the swaying of thermal plumes. An appendix gives a chronological bibliography of works on natural convention that may be pertinent to understanding of turbulent flows created in situations analogous to the NORDA high-frequency scattering facility. Key topics include buoyance, heat transfer, boundary layers, and instability.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1984
Accession Number
ADA145024

Entities

People

  • Allan D. Pierce

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Boundary Layer
  • Buoyancy
  • Computational Fluid Dynamics
  • Computational Science
  • Differential Equations
  • Flow Fields
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Heat Transfer
  • Mechanical Engineering
  • Mechanical Properties
  • Stratified Fluids
  • Thermal Conductivity
  • Turbulence
  • Turbulent Flow
  • Turbulent Mixing

Readers

  • Acoustical Oceanography.
  • Combustion and Flow Dynamics.
  • Fluid Dynamics.