title: Similarity decay of enstrophy in an electron fluid.
abstract: A similarity decay law is proposed for enstrophy of a one-signed-vorticity fluid in a circular free-slip domain. It excludes the metastable equilibrium enstrophy which cannot drive turbulence, and approaches Batchelor's t(-2) law for strong turbulence. Measurements of the decay of a turbulent electron fluid agree well with the predictions of the decay law for a variety of initial conditions.
authors.affiliation: Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA.
authors.forename: D J
authors.initials: DJ
authors.lastname: Rodgers
authors.forename: W H
authors.initials: WH
authors.lastname: Matthaeus
authors.forename: T B
authors.initials: TB
authors.lastname: Mitchell
authors.forename: D C
authors.initials: DC
authors.lastname: Montgomery