Near Wall Velocity and Vorticity Measurements, In A Very High R(theta) Turbulent Boundary Layer

Abstract

Velocity and vorticity measurements have been obtained at two y+ values: 810 and 2,150, in the very high R(theta)(O 10(exp 6)) turbulent boundary layer at the SLTEST site, Dugway Proving Grounds, Utah. Detailed descriptions of the experimental procedures are reported in order to allow the processed results to be evaluated. The research focus is on the velocity-vorticity products that appear in the formal statement of the vertical gradient of the kinematic Reynolds stress. Statistical data for the velocity and vorticity fields are presented. The cospectra for v(omega)z and w(omega)y show the unexpected result that intermediate wave numbers provide the majority of the contributions to these products.

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Document Details

Document Type
Technical Report
Publication Date
Jun 15, 2006
Accession Number
ADA449849

Entities

People

  • John F. Foss
  • Scott C. Treat

Organizations

  • Michigan State University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Sensors

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Data Acquisition
  • Fluid Mechanics
  • Information Science
  • Layers
  • Measurement
  • Shear Stresses
  • Statistical Analysis
  • Statistical Data
  • Statistics
  • Temperature Gradients
  • Test Facilities
  • Turbulent Boundary Layer
  • Turbulent Flow
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Fluid Mechanics and Fluid Dynamics.
  • Military/Explosive Ordnance Disposal (EOD) Technology