Characterization of Turbulent Unsteady Separation Using Photonic Micro Skin Friction and Wall Pressure Sensors

Abstract

The goal of this study is to investigate the structure and the dynamics of unsteady/transient separated turbulent boundary layers. Central to the study is the characterization of the streamwise and spanwise fluctuating skin friction and wall pressure fluctuations in and around the separation zone. During the first year of the project, a photonic skin friction and wall pressure sensor will be implemented to measure directly and at the same spatial location the unsteady skin friction and wall pressure. The photonic sensor will be an extension of our previous sensor development efforts, which were limited to low to moderate-frequency wall shear stress measurements.

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Document Details

Document Type
Technical Report
Publication Date
Dec 19, 2019
Accession Number
AD1098267

Entities

People

  • Tindaro Ioppolo

Organizations

  • Southern Methodist University

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors

DTIC Thesaurus Topics

  • Boundary Layer
  • Cantilever Beams
  • Channel Flow
  • Computational Fluid Dynamics
  • Distributed Feedback Lasers
  • Fluid Dynamics
  • Fluid Mechanics
  • Frequency
  • Materials
  • Measurement
  • Optical Fibers
  • Optomechanics
  • Plane Waves
  • Refractive Index
  • Shear Stresses
  • Skin Friction
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.