Accession Number:

ADA244572

Title:

A Quantitative Study of Unsteady Compressible Flow on an Oscillating Airfoil (Preprint)

Descriptive Note:

Conference paper

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Report Date:

1991-06-01

Pagination or Media Count:

18.0

Abstract:

Detailed interferometric measurements of the flow near the leading edge of an oscillating airfoil offer the first detailed experimental quantification of the locally compressible flow field that surrounds an oscillating airfoil at moderate subsonic Mach numbers. Interferograms obtained by a specially adapted real-time point-diffraction interferometry technique have revealed significant characteristics of this complex, and very rapidly varying, locally supersonic flow. Instantaneous pressure distributions determined from these interferograms document the effect of unsteadiness on the leading-edge flow environment.

Subject Categories:

  • Aerodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE