A study of wake structures of a heaving two-dimensional elliptic airfoil using DPIV technique

Kim Boon Lua*, T. T. Lim, K. S. Yeo, G. Y. Oo

*Corresponding author for this work

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

Abstract

The formation of the wake structures of a two-dimensional (2D) elliptic airfoil executing a simple harmonic heaving motion is investigated using Digital Particle Image Velocimetry (DPIV) technique. This work is motivated partly by the lack of experimental data on a 2D heaving elliptic airfoil and partly by the anomaly between the numerical results of Lewin and Haj-Hariri [Lewin, G. C. and Haj-Hariri, H., "Modelling thrust generation of a two-dimensional heaving airfoil in viscous flow," Journal of Fluid Mechanics, Vol. 492, 2003, pp. 339-362] and dye visualization results of Lai and Platzer [Lai, J. C. S and Platzer, M. F., "Jet Characteristics of a Plunging Airfoil", AIAA Journal, Vol. 37, No. 12, 1999, pp. 1529-1537]. The former study found that both the leading edge vortices (LEV) and the trailing edge vortices (TEV) contributed to the formation of the wake structures of a 2D heaving elliptic airfoil, whereas the latter study showed that only the TEV contributed to the wake structures of a heaving NACA 0012 airfoil. Possible reasons for the anomaly are provided.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
Pages3432-3445
Number of pages14
DOIs
StatePublished - 2 Jul 2007
Event45th AIAA Aerospace Sciences Meeting 2007 - Reno, NV, United States
Duration: 8 Jan 200711 Jan 2007

Publication series

NameCollection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
Volume5

Conference

Conference45th AIAA Aerospace Sciences Meeting 2007
CountryUnited States
CityReno, NV
Period8/01/0711/01/07

Fingerprint Dive into the research topics of 'A study of wake structures of a heaving two-dimensional elliptic airfoil using DPIV technique'. Together they form a unique fingerprint.

Cite this