Wind-Tunnel Research on the Mechanics of Plumes in the Atmospheric Surface Layer.

Abstract

The diffusion of a neutrally buoyant gas emitted from point sources into neutral, stable, and unstable boundary layers that simulated atmospheric conditions were studied in a meteorological wind tunnel for flow over two surface roughnesses. Measurements were made of the mean flow velocities and temperatures, turbulence intensities, velocity correlations, and gas concentrations in the diffusing plume. Empirical models were developed for predicting diffusion under all three stabilities studied. (Author).

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1984
Accession Number
ADA150019

Entities

People

  • Jack Edward Cermak
  • M. Poreh
  • P. K. Shrivastava

Organizations

  • Colorado State University

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Buoyancy
  • Diffusion
  • Flow Fields
  • Flow Visualization
  • Fluid Dynamics
  • Layers
  • Measurement
  • Mechanics
  • Particles
  • Roughness
  • Stratified Fluids
  • Surface Roughness
  • Turbulence
  • Turbulent Diffusion
  • Turbulent Mixing
  • Wind Tunnels

Fields of Study

  • Environmental science
  • Physics

Readers

  • Aerosol Science/Aerosol Physics
  • Fluid Dynamics.
  • Theoretical Analysis.