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Title: Geodynamo simulations using a cartesian magnetihydrodynamics code
Author: Neamvonk, Apichat
ISNI:       0000 0004 2669 4207
Awarding Body: University of Newcastle Upon Tyne
Current Institution: University of Newcastle upon Tyne
Date of Award: 2009
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Numerical studies of convection and magnetohydrodynamic (MHD) dynamo action in a rotating spherical shell of compressible fluid are carried out, motivated by the problem of magnetic field generation in the geodynamo. These calculations are made in a Cartesian framework using a high-order finite-difference code: the Pencil-code. The Pencil-Code uses an expUcit sixth-order centred finite-difference scheme in space, and an explicit thirc order Runge-Kutta scheme in time, and operates on 'pencils' (array sections) in one dimension in a cache-efficient way. A parallel decomposition of the spatial domain is aade in the two orthogonal dimensions, with the communication of boundary elements being handled by Message Passing Interface (MPl).
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available