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Edge-based electric field formulation in 3D CSEM simulations: A parallel approach

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10.1109/IEMCON.2015.7344499
 
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Castillo Reyes, OctavioMés informacióMés informacióMés informació
de la Puente Álvarez, Josep
Puzyrev, Vladimir
Cela Espín, José M.Més informacióMés informacióMés informació
Document typeConference report
Defense date2015-10
PublisherIEEE
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
ProjectGEAGAM - Geophysical Exploration using Advanced GAlerkin Methods (EC-H2020-644202)
Abstract
This paper presents a parallel computing scheme for the data computation that arise when applying one of the most popular electromagnetic methods in exploration geophysics, namely, controlled-source electromagnetic (CSEM). The computational approach is based on linear edge finite element method in 3D isotropic domains. The total electromagnetic field is decomposed into primary and secondary electromagnetic field. The primary field is calculated analytically using an horizontal layered-earth model and the secondary field is discretized by linear edge finite element method. We pre-calculated the primary field through of an embarrassingly-parallel framework in order to exploit the parallelism and the advantages of geometric flexibility. The numerical-computational formulation presented here is able to work with three different orientations for the dipole or excitation source. Our code is implemented on unstructured tetrahedral meshes because are able to represent complex geological structures and they allow local refinement in order to improve the solution’s accuracy. The code’s performance is studied through a test of scalability.
CitationCastillo-Reyes, Octavio [et al.]. Edge-based electric field formulation in 3D CSEM simulations: A parallel approach. A: International Conference and Workshop on Computing and Communication (IEMCON), 2015, Vancouver, BC, 15-17 Oct. 2015. "2015 International Conference and Workshop on Computing and Communication (IEMCON): 15-17 Oct. 2015". IEEE, 2015. 
URIhttp://hdl.handle.net/2117/85905
DOI10.1109/IEMCON.2015.7344499
Publisher versionhttps://ieeexplore.ieee.org/document/7344499/
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