Experimental investigations of the lift frequency response at high angles of attack

Mohamed Y. Zakaria, Haithem E. Taha, Muhammad R. Hajj

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

In comparison to the numerous theoretical research reports on the unsteady nonlinear aerodynamics, there has been very few experimental data available for validation purposes; particularly, at high angles of attack (40° and higher). We perform experiments on an oscillating two-dimensional NACA 0012 airfoil at various reduced frequencies (0.1 ≤ k ≤ 0.9) and mean angles of attack (0° ≤ α0 ≤ 65°) that undergoes a plunging motion. For each case of the mean angle of attack, th s plunging motion is performed with a small amplitude at different frequencies to determine the frequency response of the dynamics. The objective is to assess the effects of the mean angle of attack on the flow dynamics and determine specific aspects associated with unsteady motions at high values of the angle of attack and the reduced frequency.

Original languageEnglish
Title of host publication53rd AIAA Aerospace Sciences Meeting
DOIs
StatePublished - 2015
Event53rd AIAA Aerospace Sciences Meeting, 2015 - Kissimmee, United States
Duration: 5 Jan 20159 Jan 2015

Publication series

Name53rd AIAA Aerospace Sciences Meeting

Conference

Conference53rd AIAA Aerospace Sciences Meeting, 2015
Country/TerritoryUnited States
CityKissimmee
Period5/01/159/01/15

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