Oscillating Airfoil Velocity Field During Large Amplitude Dynamic Stall
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Authors
Chandrasekhara, M.S.
Van Dyken, R.D.
Subjects
Advisors
Date of Issue
1991-09
Date
September 9-11, 1991
Publisher
Language
Abstract
The leading edge flow field of an airfoil executing a. sinusoidal
oscillatory motion and experiencing dynamic stall under
compressibility conditions has been studied using a two component
LDV system. Phase averaged mean velocity measurements
and some flow quantities derived from it are presented and discussed.
The results indicate extremely large accelerations of the
flow are present around the leading edge with mean velocity values
60% higher than and instantaneous velocities as large as 1. 75
times the free stream velocity. The velocity profiles at certain
locations over the airfoil resemble that of a wake.
Type
Conference Paper
Description
Series/Report No
Department
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
2 p.
Citation
Symposium on Turbulent Shear Flows, 8th, Munich, Federal Republic of Germany, Sept. 9-11, 1991, Proceedings. Vol. 2 (A92-40051 16-34). University Park, PA, Pennsylvania State University, 1991: Oscillating airfoil velocity field during large amplitude dynamic stall
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.