Experimental Determination of Drag Modifications Due to Elastic Compliant Surfaces Using Quantitative Visual Techniques.

Abstract

Direct measurements of the wall shear stress have been made at a point on three thicknesses of an elastic compliant surface. Approximately 8% Cf reduction was measured on each surface. Observations of the surfaces' motion showed that they responded to the microscale turbulent eddies. At higher forcing the onset of various surface wave phenomena were observed. Keywords: Compliant surfaces, Drag reduction, Skin friction, Boundary layers.

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Document Details

Document Type
Technical Report
Publication Date
Apr 27, 1988
Accession Number
ADA194785

Entities

People

  • Chia‐Chi Chu
  • R. E. Falco

Organizations

  • Michigan State University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Boundary Layer Flow
  • Channel Flow
  • Classification
  • Elastic Properties
  • Image Processing
  • Measurement
  • Mechanical Engineering
  • Mechanical Properties
  • Pressure Measurement
  • Processing Equipment
  • Shear Stresses
  • Skin Friction
  • Stresses
  • Surface Waves
  • Wave Phenomena
  • Waves

Readers

  • Fluid Dynamics.
  • Mathematics or Statistics
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers