Turbulence Structure in the Wake of an Oscillating Airfoil.
Abstract
The main objective of the present study is to provide experimental information about turbulence structures in unsteady flow fields. Measurements were made in the wake of a NACA 0012 airfoil oscillating in pitch around an axis at 25% chord distance from the leading edge with a sinusoidal motion. Instantaneous profiles of velocity and all non-zero Reynolds stresses are determined at 48 phase angles within the oscillation period. Measurements were made at .7, 2, 5, 10 and 20% chord downstream of the trailing edge. Various incidences, from zero to just above stall limit, various amplitudes and frequencies were considered.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1981
- Accession Number
- ADA116034
Entities
People
- C. Hirsch
- J. De Ruyck
Organizations
- Vrije Universiteit Brussel