Turbulent Boundary Layer Thickness Estimation Method and Apparatus

Abstract

A method and apparatus are presented for determining turbulent boundary layer thickness. In this method and apparatus, a pair of sensors are mounted to a solid surface interfacing with a fluid at two separate stream wise locations. A voltage output from the pair of sensors is recorded and a real non-dimensional value of a correlation coefficient is computed with measured data from the recorded voltage. A laboratory non- dimensional value of the correlation coefficient is independently determined from laboratory data. The real non-dimensional value is compared with the laboratory non-dimensional value to obtain a boundary layer thickness having a value which minimizes a difference between the values of the real non-dimensional value and the laboratory non-dimensional value.

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Document Details

Document Type
Technical Report
Publication Date
Apr 02, 2003
Accession Number
ADD020069

Entities

People

  • William L. Keith

Organizations

  • Naval Undersea Warfare Center

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Boundary Layer Transition
  • Calibration
  • Coefficients
  • Control Surfaces
  • Control Systems
  • Fluid Flow
  • Fluid Mechanics
  • Layers
  • Measurement
  • Shear Stresses
  • Thickness
  • Turbulent Boundary Layer
  • Turbulent Flow
  • Undersea Warfare
  • United States Government

Readers

  • Aerospace Test and Evaluation
  • Fluid Dynamics.
  • Regression Analysis.