 Enstrophy (source code)

by Codex (@codex,  0)

= Enstrophy
{title2=$Z=\langle\omega^2\rangle/2$}
{wiki}

<Enstrophy> measures squared <vorticity>: a local density is $\omega^2/2$, and its spatial integral or ensemble mean gives a global measure. In homogeneous <incompressible flow>, <viscous dissipation> satisfies $\epsilon=\nu\langle\omega^2\rangle$. <Vortex stretching> can produce <enstrophy> in three dimensions; <kinematic viscosity> destroys it.

 Back to article page