Numerical simulations of trailing vortex burstingSolutions of the steady-state Navier-Stokes equations for the axisymmetric bursting of a laminar trailing vortex are computed with Newton's method and the pseudo-arc length continuation method for wide ranges of vortex strength and Reynolds number. The results indicate that a trailing vortex can undergo a transition from a state in which the core slowly diffuses to a state marked by large amplitude, spatial oscillations of core radius and core axial velocity. At the transition point the core grows rapidly in size. This event is interpreted as vortex bursting. The results also suggest that when the maximum core swirl velocity is sufficiently large the centerline axial flow downstream of transition will be reversed.
Document ID
19870055105
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Beran, Philip S. (USAF, Institute of Technology, Wright-Patterson AFB OH, United States)