Enstrophy: Difference between revisions
From Glossary of Meteorology
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<div class="definition"><div class="short_definition">One-half the square of the [[relative vorticity]].</div><br/> <div class="paragraph">The term was popularized by C. Leith and is based on the modern Greek στρωφη, meaning | <div class="definition"><div class="short_definition">One-half the square of the [[relative vorticity]].</div><br/> <div class="paragraph">The term was popularized by C. Leith and is based on the modern Greek στρωφη, meaning "act of turning." Enstrophy is a conservative quantity in two-dimensional inviscid flow. However, when [[viscosity]] is finite, enstrophy tends to be selectively decayed relative to more rugged integrals such as [[energy]] and [[angular momentum]].</div><br/> </div><div class="reference">Leith, C. E. 1968. Diffusion approximation for two-dimensional turbulence. Phys. Fluids. 11. 671–673. </div><br/> | ||
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Latest revision as of 14:09, 20 February 2012
enstrophy
One-half the square of the relative vorticity.
The term was popularized by C. Leith and is based on the modern Greek στρωφη, meaning "act of turning." Enstrophy is a conservative quantity in two-dimensional inviscid flow. However, when viscosity is finite, enstrophy tends to be selectively decayed relative to more rugged integrals such as energy and angular momentum.
Leith, C. E. 1968. Diffusion approximation for two-dimensional turbulence. Phys. Fluids. 11. 671–673.
