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Published April 20, 1987 | public
Journal Article Open

Numerical Study of Vortex Reconnection


With a Biot-Savart model of vortex filaments to provide initial conditions, a finite difference scheme for the incompressible Navier-Stokes equation is used in the region of closest approach of two vortex rings. In the Navier-Stokes solution, we see that the low pressure which develops between the interacting vorticity regions causes the distortion of the initially circular vortex cross section and forces the rearrangement of vorticity on a convective time scale which is much faster than that estimated from viscous transport.

Additional Information

©1987 The American Physical Society Received 15 September 1986 This work was supported by th eU.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences. One of us (D.I.M.) was a visitor at the Combustion Research Laboratory at Sandia National Laboratories under the Summer Faculty Program. We wish to thank Dr. Nagi Mansour for helpful discussions on the Navier-Stokes scheme.


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