The motion of 100 point vortices in a circular cylinder has been
simulated numerically and compared with theoretical predictions based
on microcanonical statistical mechanics. The vortices have greatly
different circulation strengths, which leads to a substantial
amplification of statistical trends such as the preferred clustering of
the strong vortices in either same-signed or oppositely signed pairs,
depending on the overall energy level. On-going work related to
regularized vortices and stochastic approximation models is also
discussed.
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