An experimental study of added mass on a plunging airfoil oscillating with high frequencies at high angles of attack

Mohamed Y. Zakaria, Daniel A. Pereira, Saad Ragab, Muhammad R. Hajj, Flávio D. Marques

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

7 Scopus citations

Abstract

Experiments are conducted to measure the unsteady plunging forces on an airfoil at zero forward velocity. The aim is to investigate the variation of the added mass with the oscillation frequency of the wing section for various angles of attack. Data of the measured forces is presented and compared with predicted forces from potential flow approximations. The results show a significant departure from those estimates especially at the high frequencies. The results show that the added mass varies linearly with the frequency of the oscillations. Furthermore, the added mass is largest for the cases of 10 and 20 degrees angles of attack. These results raise the question of how to account for the unsteady flow generated by the airfoil motion.

Original languageEnglish
Title of host publication33rd AIAA Applied Aerodynamics Conference
DOIs
StatePublished - 2015
Event33rd AIAA Applied Aerodynamics Conference, 2015 - Dallas, United States
Duration: 22 Jun 201526 Jun 2015

Publication series

Name33rd AIAA Applied Aerodynamics Conference
Volume0

Conference

Conference33rd AIAA Applied Aerodynamics Conference, 2015
Country/TerritoryUnited States
CityDallas
Period22/06/1526/06/15

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