H
Henri-Claude Nataf
Researcher at University of Grenoble
Publications - 15
Citations - 645
Henri-Claude Nataf is an academic researcher from University of Grenoble. The author has contributed to research in topics: Magnetic field & Couette flow. The author has an hindex of 11, co-authored 15 publications receiving 582 citations. Previous affiliations of Henri-Claude Nataf include Centre national de la recherche scientifique.
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Turbulent geodynamo simulations: a leap towards Earth's core
TL;DR: In this paper, a sequence of three convection-driven simulations in a rapidly rotating spherical shell is used to reach realistic turbulent regime in direct numerical simulations of the geodynamo.
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Rotating spherical Couette flow in a dipolar magnetic field: experimental study of magneto-inertial waves
D. Schmitt,Thierry Alboussière,Daniel Brito,Philippe Cardin,Nadège Gagnière,Dominique Jault,Henri-Claude Nataf +6 more
TL;DR: In this article, the magneto-inertial wave was identified as the largest contribution to the observed fluctuations, and all of them travel in the retrograde direction in the frame of reference bound to the fluid.
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Experimental study of super-rotation in a magnetostrophic spherical Couette flow
Henri-Claude Nataf,Thierry Alboussière,Daniel Brito,Philippe Cardin,Nadège Gagnière,Dominique Jault,Jean-Paul Masson,D. Schmitt +7 more
TL;DR: In this paper, the electric potentials at the surface of a spherical container of liquid sodium in which a magnetized inner core is differentially rotating were measured and the azimuthal angular velocities inferred from these potentials reveal a strong super-rotation of the liquid sodium, for small differential rotation.
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Rapidly rotating spherical Couette flow in a dipolar magnetic field: An experimental study of the mean axisymmetric flow
Henri-Claude Nataf,Thierry Alboussière,Daniel Brito,Philippe Cardin,Nadège Gagnière,Dominique Jault,D. Schmitt +6 more
TL;DR: In this paper, a rotating sphere filled with liquid sodium, with an imposed dipolar magnetic field (the DTS setup), was investigated by measuring electric potentials on the outer sphere, the induced magnetic field in the laboratory frame, and velocity profiles inside the liquid sodium using ultrasonic Doppler velocimetry.
Journal Article
Towards a rapidly rotating liquid sodium dynamo experiment
TL;DR: In this paper, an experiment with liquid sodium can be designed to operate in the magnetostrophic regime of the Earth's dynamo and an estimate of the power needed to sustain the magnetic eld in this regime is derived.