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Statut |
Confirmé |
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Série |
LPS/ENS |
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Domaines |
physics |
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Date |
Mercredi 21 Septembre 2011 |
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Heure |
16:30 |
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Institut |
LPS/ENS |
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Salle |
Conf-IV |
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Nom de l'orateur |
Kida |
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Prenom de l'orateur |
Shigeo |
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Addresse email de l'orateur |
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Institution de l'orateur |
Doshisha University, Japan |
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Titre |
A Turbulent Ring and Dynamo in a Precessing Sphere |
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Résumé |
In this talk we present our recent results of MHD dynamo simulation in a precessing sphere of which the spin and precession axes are orthogonal. A ring structure of high activity, both in vorticity and magnetic flux density is observed in the sphere, which is fixed to the precession frame being localized near a great circle whose normal is inclined slightly from the spin axis. Both the velocity and magnetic fields are activated near the cross sections of the ring with the equatorial plane, and their fluctuations make a prograde motion. |
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Numéro de preprint arXiv |
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Commentaires |
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Fichiers attachés |
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