Helicity cascades in rotating turbulence

Details Helicity cascades in rotating turbulence Helicity cascades in rotating turbulence

2008-09-04

arxiv.org/abs/0809.0869v1

Physics

Fluid Dynamics

7 pages, 8 figures

Scientific paper

10.1103/PhysRevE.79.026304

The effect of helicity (velocity-vorticity correlations) is studied in direct numerical simulations of rotating turbulence down to Rossby numbers of 0.02. The results suggest that the presence of net helicity plays an important role in the dynamics of the flow. In particular, at small Rossby number, the energy cascades to large scales, as expected, but helicity then can dominate the cascade to small scales. A phenomenological interpretation in terms of a direct cascade of helicity slowed down by wave-eddy interactions leads to the prediction of new inertial indices for the small-scale energy and helicity spectra.

Affiliated with

Also associated with

No associations

Rating

Helicity cascades in rotating turbulence does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Helicity cascades in rotating turbulence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Helicity cascades in rotating turbulence will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-142338