74th Annual Meeting of the APS Division of Fluid Dynamics (November 21, 2021 — November 23, 2021)

V0009: Effect of angle of attack on flow structures on the nonslender flying wing

Authors

• Vivek Kumar, Indian Institute of Technology Kanpur, India
• Alakesh Chandra Mandal, Indian Institute of Technology Kanpur, India
• Kamal Poddar, Indian Institute of Technology Kanpur, India

DOI: https://doi.org/10.1103/APS.DFD.2021.GFM.V0009

This video shows the effect of angle of attack on flow structures/patterns over a nonslender flying wing using the surface flow visualization technique. Flow-field over the flying wing can be categorized as attached flow without leading-edge vortex, separated flow without vortex breakdown, and separated flow with vortex breakdown on the flying wing. It reveals symmetrical flow structures about the root-chord with increasing angle of attack. The wave-like surface flow structure moves upstream on the flying wing, with increasing angle of attack. Also, the wave-like surface structure moves downward and decreases in size with increasing Reynolds number on the flying wing.