Wake transitions and laminar separation bubble in the flow past an Eppler 61 airfoil

• Published in: Physics of fluids (1994) Vol. 31; no. 11
• Main Authors: Samuthira Pandi, Jawahar Sivabharathy, Mittal, Sanjay
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 01.11.2019
• Subjects: Aerodynamics; Computational fluid dynamics; Flow stability; Fluid dynamics; Fluid flow; Horseshoe vortices; Laminar wakes; Periodic variations; Physics; Reynolds stress; Separation; Shear layers; Simulation; Spatial distribution; Stress concentration; Structural stability; Three dimensional flow; Vortex shedding

The flow past an Eppler 61 airfoil at 10° angle to the free-stream is investigated numerically for 100 ≤ Re ≤ 87 000. Vortex shedding is observed beyond Re ∼ 600 and three-dimensionality sets in at Re ∼ 1280.9 via the mode C instability and hairpin vortex structures that grow with an increase in Re....