A theory for the core of a three-dimensional leading-edge vortexA theory is presented for the flow in the core of a separation-induced leading-edge vortex. The theory is based on matching inner and outer representations of the vortex. The inner representation models continuously distributed vorticity and includes an asymptotic viscous subcore. The outer representation models concentrated spiral sheets of vorticity and is fully three dimensional. A parameter is identified which closely tracks the vortex breakdown stability boundary for delta, arrow, and diamond wings.
Document ID
19850037373
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Luckring, J. M. (NASA Langley Research Center Transonic Aerodynamics Div., Hampton, VA, United States)