A technique, "Vorticity Confinement", is described that represents
a very effective, unified way of treating complex, high Reynolds number
separated flows with thin convecting vortices, as well as complex solid
bodies with thin attached boundary layers.
First, drawbacks of conventional Eulerian computational methods are
described and how Vorticity Confinement, which is also Eulerian,
ameliorates them. The basic assumptions in Vorticity Confinement are then
reviewed. Some details of the method are described.
Following the description, a sequence of results are presented: First,
2-D results for convecting vortices and Cauchy-Riemann flow over a
cylinder are presented. These describe the salient features of the method
for convecting vortices and for flow over solid surfaces, embedded in a
uniform Cartesian grid. Then, 3-D results for flow over complex bodies,
including rotorcraft, are presented.
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