Combining Boundary Element And Discrete Source Methods For The
Modelling Of Corrosion Related Magnetic Fields
Author(s)
M. D. Pocock & V. G. DeGiorgi
Abstract
Combining boundary element and discrete
source methods for the modelling of corrosion
related magnetic fields
M.D. ~ocock' & V.G. ~ e ~ i o r ~ i '
1 Frazer-Nash Consultancy Ltd, UK
2 Naval Research Laboratory, USA
Abstract
This paper presents a pragmatic modelling approach for solving the Corrosion
Related Magnetic (CRM) field that is particularly effective for medium and farfield
predictions. Possible techniques for solving the CRM include, Finite
Element (FE), Boundary Element (BE) and Discrete Source Methods. The
strengths and weaknesses of each of these approaches are discussed. The
proposed approach combines a BE model of the static electric field fiom which a
discrete source model of the CRM field is derived. The advantages of this
method are that an accurate solution to the CRM field is rapidly obtained without
meshing throughout the sea volume. Results obtained with the BE and discrete
source solvers within the PNREMUS software are used to illustrate the process.
1 Introduction
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Keywords
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