Experimental Investigation of Upper Turbulence Models

Abstract

Theoretical investigation of estimating turbulence statistical parameters from balloon-borne anemometer array measurements. The goal of this task is to develop the theoretical and computer modeling tools needed to investigate the turbulence strength, the isotropic nature of the turbulence, and the spatial correlation properties of the turbulence, or equivalently the spatial power spectral density, of the index of refraction fluctuations in the upper atmosphere using balloon borne anemometer measurements as the input. Balloon borne experiment design, construction, and test. In this task we are designing, constructing, and testing a balloon-borne anemometer system which will measure atmospheric turbulence based on temperature data, allowing the theoretical investigations described in Task I to be tested with experimental data. Experimental campaigns and data reduction: The goal of this task is to conduct a very limited number of data collection campaigns at a variety of locations and times of day The purpose of these tests is not to establish a world wide data base, but rather to demonstrate that there are quantifiable differences between data collected without any assumptions, and the present data.

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Document Details

Document Type
Technical Report
Publication Date
Nov 30, 2001
Accession Number
ADA397199

Entities

People

  • Michael Roggemann

Organizations

  • Michigan Technological University

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Anemometers
  • Atmospheres
  • Atmospheric Motion
  • Computational Fluid Dynamics
  • Data Processing
  • Data Reduction
  • Databases
  • Electrical Engineering
  • Engineering
  • Experimental Data
  • Fluid Flow
  • Measurement
  • Refraction
  • Refractive Index
  • Turbulence
  • Turbulent Mixing

Readers

  • Astronomy and Astrophysics.
  • Computational Modeling and Simulation
  • Fluid Dynamics.