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physics.flu-dyn2019
Nonaxisymmetric instabilities in turbulent electromagnetic pumps
Paola Rodriguez Imazio, Christophe Gissinger
The stability of annular electromagnetic pumps (EMPs) is investigated through 3D direct numerical simulations. When induction effects dominate dissipative processes, linear inducti…
physics.flu-dyn2012★ 1 cited
Effective diffusivity of passive scalars in rotating turbulence
P. Rodriguez Imazio, P. D. Mininni
We use direct numerical simulations to compute turbulent transport coefficients for passive scalars in turbulent rotating flows. Effective diffusion coefficients in the directions…
physics.flu-dyn2009
Cancellation exponents in helical and non-helical flows
Paola Rodriguez Imazio, Pablo Daniel Mininni
Helicity is a quadratic invariant of the Euler equation in three dimensions. As the energy, when present helicity cascades to smaller scales where it dissipates. However, the role…