Development of a Model for Swirling Flows.

Abstract

The purpose of this project was to develop a second order model for weakly swirling flows. The model was based on a successful model for the buoyancy driven mixed layer of the atmosphere. Swirling flows present a challenge to the modeler due to the influence of radial turbulent transport on the radial distribution of azimuthal velocity. This is weakly analogous to the effect of density stratification in a flow with gravity. A radial distribution of angular momentum increasing outward will have a stabilizing influence, and will suppress radial transport and reduce the rate of spread of a scalar marker, while a radial distribution of angular momentum decreasing outward will have the opposite effect.

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Document Details

Document Type
Technical Report
Publication Date
Oct 24, 1986
Accession Number
ADA177302

Entities

People

  • John L. Lumley

Organizations

  • Cornell University

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Air Force Facilities
  • Angular Momentum
  • Buoyancy
  • Classification
  • Eddies (Fluid Mechanics)
  • Equations
  • Flow
  • Fluid Flow
  • Momentum
  • New York
  • Pressure Gradients
  • Security
  • Transport Ships
  • Turbulence
  • United States

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers