Print Email Facebook Twitter Spanwise flow structures within a laminar separation bubble on an airfoil Title Spanwise flow structures within a laminar separation bubble on an airfoil Author Michelis, Theodorus (TU Delft Aerodynamics) Kotsonis, M. (TU Delft Aerodynamics) Yarusevych, S. (TU Delft Aerodynamics; University of Waterloo) Date 2017 Abstract The present study considers the development of a Laminar Separation Bubble on the suction side of a NACA0018 airfoil under natural and forced conditions. Deterministic forcing is applied by means of a two-dimensional plasma actuator installed on the airfoil surface. The spatiotemporal characteristics of the bubble are measured using time-resolved, two-component Particle Image Velocimetry in streamwise and spanwise planes. Analysis of the results shows that while the time-average bubble is strongly two-dimensional, the dominant coherent structures assume three dimensional organisation in the vicinity of laminarturbulent breakdown in both natural and forced conditions. To reference this document use: http://resolver.tudelft.nl/uuid:94aaf935-aaf9-4527-9ec1-d7cd22d94d98 Publisher TSFP ISBN 9780000000002 Source 10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017, 3 Event 10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017, 2017-07-06 → 2017-07-09, Chicago, United States Part of collection Institutional Repository Document type conference paper Rights © 2017 Theodorus Michelis, M. Kotsonis, S. Yarusevych Files PDF 201.pdf 3.04 MB Close viewer /islandora/object/uuid:94aaf935-aaf9-4527-9ec1-d7cd22d94d98/datastream/OBJ/view