Contents | PDF file (253 KB)

ESAIM: Proceedings, Vol. 7, 1999, 440-454
Third International Workshop on Vortex Flows
and Related Numerical Methods
http://www.emath.fr/proc/Vol.7/

A Hybrid Vortex Method for Two-Dimensional Flow Over Tube Bundles

Walter P. Wolfe (wpwolfe@sandia.gov)
James H. Strickland (jhstric@sandia.gov)

Engineering Sciences Center
Sandia National Laboratories*
P.O. Box 5800
Albuquerque, NM 87185-0836, USA


Abstract:

A hybrid vortex method is presented for computing flows about objects that accurately resolves the boundary layer details while keeping the number of free vortices at a reasonable level. The method uses a wall layer model close to the body surface and discrete vortex blobs in the free wake. Details of the wall layer implementation are presented, and results of sample calculations are compared with known analytical solutions and with calculations from other vortex codes. These results show that the computed boundary layer details are accurate to approximately 0.3 percent of analytical solutions while using three orders of magnitude fewer vortices than other vortex simulations.
Contents | PDF file (253 KB)