Robust inverse energy cascade and turbulence structure in three-dimensional layers of fluid

Physics – Fluid Dynamics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

8 pages, 6 figures

Scientific paper

10.1063/1.3638620

Here we report the first evidence of the inverse energy cascade in a flow dominated by 3D motions. Experiments are performed in thick fluid layers where turbulence is driven electromagnetically. It is shown that if the free surface of the layer is not perturbed, the top part of the layer behaves as quasi-2D and supports the inverse energy cascade regardless of the layer thickness. Well below the surface the cascade survives even in the presence of strong 3D eddies developing when the layer depth exceeds half the forcing scale. In a bounded flow at low bottom dissipation, the inverse energy cascade leads to the generation of a spectral condensate below the free surface. Such coherent flow can destroy 3D eddies in the bulk of the layer and enforce the flow planarity over the entire layer thickness.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Robust inverse energy cascade and turbulence structure in three-dimensional layers of fluid 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 Robust inverse energy cascade and turbulence structure in three-dimensional layers of fluid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Robust inverse energy cascade and turbulence structure in three-dimensional layers of fluid will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-333055

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.