Investigation of accelerated flow over an airfoil at an angle of attack using multigrid cross-correlation digital PIV

J. Soria, T. T. Lim, K. Parker, T. H. New

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Abstract

A preliminary study has been undertaken to investigate the evolution and structure of flow accelerated from a stationary state over a NACA 0015 airfoil at an angle of attack of 30°. Two uniform accelerations of 50mm/s 2 and 100mm/s2 were employed. The final uniform velocity was the same for both cases, 100 mm/s. The Reynolds number based on this uniform velocity and the chord length of the airfoil was 8000. PIV measurements were carried out using a digital high resolution CCD camera to record single exposed images of seed particles illuminated using a Nd:YAG laser. The single exposed images were analysed using multigrid cross-correlation digital PIV analysis. These measurements have revealed a rich and complex unsteady flow structure.

Original languageEnglish
Title of host publicationDLR - Mitteilungen
Pages29-36
Number of pages8
Edition3
Publication statusPublished - 1 Dec 2001
EventInternational Symposium on Particle Image Velocimetry (PIV) 2001 - Gottingen, Germany
Duration: 17 Sep 200119 Sep 2001

Publication series

NameDLR-Mitteilung
ISSN (Print)1434-8462

Conference

ConferenceInternational Symposium on Particle Image Velocimetry (PIV) 2001
Abbreviated titlePIC 2001
CountryGermany
CityGottingen
Period17/09/0119/09/01

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