Abstract
AbstractAn experimental study has been carried out to investigate the nature of vortex breakdown structure of the complex flow field over a flying wing configuration with sweep angle, Λ = 53o at the Reynolds number (Re) range, 2.5 × 105–7.5 × 105. Surface oil flow visualization, surface pressure measurements, and the particle image velocimetry (PIV) measurements have been carried out to characterize the flow field over the flying wing. This study reveals the separated vortical flow with vortex breakdown and a wave-like structure in the flow visualization images. This wave-like structure is found to be related to the onset of vortex breakdown over the flying wing configuration.KeywordsVortex breakdownNonslender flying wingVortical flowsSeparated vortical flow with vortex breakdown
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