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Modulated rotating waves in the magnetised spherical Couette system
(2019-12)
Article
Open AccessWe present a study devoted to a detailed description of modulated rotating waves (MRW) in the magnetised spherical Couette system. The set-up consists of a liquid metal confined between two differentially rotating spheres ... -
Polar waves and chaotic flows in thin rotating spherical shells
(2019-07-08)
Article
Open AccessConvection in rotating spherical geometries is an important physical process in planetary and stellar systems. Using continuation methods at a low Prandtl number, we find both strong equatorially asymmetric and symmetric ... -
Chaotic wave dynamics in weakly magnetized spherical Couette flows
(Institute of Physics (IOP), 2020-04-14)
Article
Open AccessDirect numerical simulations of a liquid metal filling the gap between two concentric spheres are presented. The flow is governed by the interplay between the rotation of the inner sphere (measured by the Reynolds number ... -
Deep model simulation of polar vortices in gas giant atmospheres
(Oxford University Press, 2020-11-04)
Article
Open AccessThe Cassini and Juno probes have revealed large coherent cyclonic vortices in the polar regions of Saturn and Jupiter, a dramatic contrast from the east–west banded jet structure seen at lower latitudes. Debate has centred ... -
Four-frequency solution in a magnetohydrodynamic Couette flow as a consequence of azimuthal symmetry breaking
(American Institute of Physics (AIP), 2020-12-31)
Article
Open AccessThe occurrence of magnetohydrodynamic quasiperiodic flows with four fundamental frequencies in differentially rotating spherical geometry is understood in terms of a sequence of bifurcations breaking the azimuthal symmetry ... -
Experimental investigation of the return flow instability in magnetized spherical Couette flows
(2020-12-01)
Article
Open AccessWe conduct magnetized spherical Couette (MSC) flow experiments in the return flow instability regime with GaInSn as the working fluid, the ratio of the inner to the outer sphere radii ri/ro = 0.5, the Reynolds number Re = ... -
Long term time dependent frequency analysis of chaotic waves in the weakly magnetized spherical Couette system
(2021-04)
Article
Restricted access - publisher's policyThe long therm behavior of chaotic flows is investigated by means of time dependent frequency analysis. The system under test consists of an electrically conducting fluid, confined between two differentially rotating ... -
Modulated rotating waves and triadic resonances in spherical fluid systems: The case of magnetized spherical Couette flow
(2021-04)
Article
Open AccessThe existence of triadic resonances in the magnetized spherical Couette system is related to the development of modulated rotating waves, which are quasiperiodic flows understood in terms of bifurcation theory in systems ... -
On the wireless microwave sensing of bacterial membrane potential in microfluidic-actuated platforms
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-05-14)
Article
Open AccessThe investigation of the electromagnetic properties of biological particles in microfluidic platforms may enable microwave wireless monitoring and interaction with the functional activity of microorganisms. Of high relevance ... -
Multifidelity prediction in wildfire spread simulation: Modeling, uncertainty quantification and sensitivity analysis
(Elsevier, 2021-07-01)
Article
Open AccessWildfire behavior predictions typically suffer from significant uncertainty. However, wildfire modeling uncertainties remain largely unquantified in the literature, mainly due to computing constraints. New multifidelity ...
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