Numerical Analysis of Wing Vortices

摘要

The temporal development of generic vortex systems based on Lamb-Oseen vortices is computed by large-eddy simulations. For a two-vortex system the growth of shortwave co-operative elliptical and long-wave Crow instabilities leads to a pronounced decay of its vorticity distribution. The four-vortex system possesses a smaller decay rate than the two-vortex system.