An Investigation of the Near-Wake Properties Associated with Periodic Vortex Shedding from Airfoils.

Abstract

An investigation of the near wake of airfoils with various trailing edge configurations including splitter plates reveals properties which are conducive to wake periodicity. The frequency of the shedding process is found to scale with the near wake momentum thickness and a wake velocity simply related to the base pressure coefficient. Computer results suggest that the frequency and bandwidth of the vortex shedding process can be predicted by a solution of the complete Orr-Sommerfeld equation. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1970
Accession Number
AD0718893

Entities

People

  • Carl E. Hanson

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Bandwidth
  • Base Pressure
  • Coefficients
  • Computers
  • Equations
  • Fluid Flow
  • Frequency
  • Momentum
  • Periodic Variations
  • Physical Properties
  • Thickness
  • Trailing Edges
  • Vortex Shedding
  • Vortices

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Fluid Mechanics and Fluid Dynamics.