𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The helicity constraint in spherical shell dynamos

✍ Scribed by A. Brandenburg; P. J. Käpylä; D. Mitra; D. Moss; R. Tavakol


Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
215 KB
Volume
328
Category
Article
ISSN
0004-6337

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

The motivation for considering distributed large scale dynamos in the solar context is reviewed in connection with the magnetic helicity constraint. Preliminary accounts of 3‐dimensional direct numerical simulations (in spherical shell segments) and simulations of 2‐dimensional mean field models (in spherical shells) are presented. Interesting similarities as well as some differences are noted. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)


📜 SIMILAR VOLUMES


Numerical Modeling of Magnetohydrodynami
✍ Weijia Kuang; Jeremy Bloxham 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 395 KB

In this paper we describe a numerical model for investigating magnetohydrodynamic (MHD) convective flow of a Boussinesq fluid in a rapidly rotating spherical shell, driven by the buoyancy forces arising from incoming buoyant flux at the inner core boundary. The model is designed to investigate the g

Spectral methods for the simulation of i
✍ A. Tilgner 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 111 KB 👁 2 views

A spatial discretization of the incompressible Navier-Stokes equation is presented in which the velocity is decomposed using poloidal and toroidal scalars whose spatial dependence is given in terms of spherical harmonics and Chebychev polynomials. The radial resolution needs to be large enough at an