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the claim
Black-hole ocean eddies are coherent nonlinear mesoscale water structures that trap fluid inside closed streamlines.
the verdict
SUPPORTED
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the weight of evidence
3 sources for · 0 against

Peer-reviewed fluid dynamics literature demonstrates that certain coherent Lagrangian vortices in the ocean act as exact mathematical equivalents to cosmological photon spheres around black holes, trapping fluid within closed streamlines.

Evidence for · 3
Coherent Lagrangian vortices: the black holes of turbulence
2013 · cited by 187
AbstractWe introduce a simple variational principle for coherent material vortices in two-dimensional turbulence. Vortex boundaries are sought as closed stationary curves of the averaged Lagrangian strain. Solutions to this problem turn out to be mathematically equivalent to photon spheres around black holes in cosmology. The fluidic photon spheres satisfy explicit differential equations whose outermost limit cycles are optimal Lagrangian vortex boundaries. As an application, we uncover super-coherent material eddies in the South Atlantic, which yield specific Lagrangian transport estimates for Agulhas rings.
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rails:sufficiency:supported:for=2+1p:against=0+0p | v55:sufficiency

More for · 2
Addendum to ‘Coherent Lagrangian vortices: the black holes of turbulence’
2014 · cited by 30
AbstractIn Haller & Beron-Vera (J. Fluid Mech., vol. 731, 2013, R4) we developed a variational principle for the detection of coherent Lagrangian vortex boundaries. The solutions of this variational principle turn out to be closed null geodesics of the Lorentzian metric induced by a generalized Green–Lagrange strain tensor family. This metric interpretation implies a mathematical analogy between coherent Lagrangian vortex boundaries and photon spheres in general relativity. Here, we give an improved discussion of this analogy.
Coherent Lagrangian swirls among submesoscale motions.
2019 · cited by 7
The emergence of coherent Lagrangian swirls (CLSs) among submesoscale motions in the ocean is illustrated. This is done by applying recent nonlinear dynamics tools for Lagrangian coherence detection on a surface flow realization produced by a data-assimilative submesoscale-permitting ocean general circulation model simulation of the Gulf of Mexico. Both mesoscale and submesoscale CLSs are extracted. These extractions prove the relevance of coherent Lagrangian eddies detected in satellite-altimetry-based geostrophic flow data for the arguably more realistic ageostrophic multiscale flow.
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  1. Coherent Lagrangian vortices: the black holes of turbulencepeer-reviewedno side taken
  2. Addendum to ‘Coherent Lagrangian vortices: the black holes of turbulence’peer-reviewedno side taken
  3. Coherent Lagrangian swirls among submesoscale motions.peer-reviewedno side taken
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