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  FEMALY: A Finite Element MAtlab LibrarY for Electromagnetics

Spitzer, K., Blechta, J., Börner, J., Börner, R.-U., Eiermann, M., Ernst, O., Scheunert, M. (2024): FEMALY: A Finite Element MAtlab LibrarY for Electromagnetics. - In: Börner, J., Yogeshwar, P. (Eds.), - Protokoll über das 30. Schmucker-Weidelt-Kolloquium für Elektromagnetische Tiefenforschung: St. Marienthal, 25. September - 29. September 2023, 30. Schmucker-Weidelt-Kolloquium für Elektromagnetische Tiefenforschung (St. Marienthal 2023), 23-23, 1 p.

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5026075 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5026075_3
Genre: Conference Paper

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https://gfzpublic.gfz-potsdam.de/pubman/item/item_5026039 (Supplementary material)
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 Creators:
Spitzer, Klaus1, Author
Blechta, Jan1, Author
Börner, Jana1, Author
Börner, Ralph-Uwe1, Author
Eiermann, Michael1, Author
Ernst, Oliver1, Author
Scheunert, Mathias1, Author
Affiliations:
130. Kolloquium, 2023, Schmucker-Weidelt-Kolloquium für Elektromagnetische Tiefenforschung EMTF, External Organizations, ou_5026038              

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 Abstract: We present a finite element software library written in Matlab for the numerical simulation and inversion of electromagnetic fields in two and three dimensions. It is designed in a modular way to easily plug together fundamental building blocks for various electromagnetic applications from DC to the inductive range in the frequency and even time domain. External modules comprise the mesh generator and the equation solver library. Through its homogeneous software concept the adoption to any field application is relatively simple and makes the code suitable to open source distribution. We introduce the key features of this library including higher-order Lagrange and Nédélec finite elements formulated on unstructured tetrahedral grids, a Gauss- Newton inversion approach using linear Raviart-Thomas elements for H1 regularization, and the ability to incorporate any geometric feature such as topography, bathymetry and internal voids like caves, tunnels and mine buildings. The library is currently being tested with large real data sets to confirm its usefulness as a tool for practical data interpretation. Therefore, case studies for the magnetotelluric, direct current resistivity, controlled source electromagnetic and induced polarization methods in the field and laboratory are briefly outlined as examples with challenging geometric features.

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Language(s): eng - English
 Dates: 20242024
 Publication Status: Finally published
 Pages: 1
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: -
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Title: 30. Schmucker-Weidelt-Kolloquium für Elektromagnetische Tiefenforschung
Place of Event: St. Marienthal
Start-/End Date: 2023-09-25 - 2023-09-29

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Title: Protokoll über das 30. Schmucker-Weidelt-Kolloquium für Elektromagnetische Tiefenforschung: St. Marienthal, 25. September - 29. September 2023
Source Genre: Proceedings
 Creator(s):
Börner, Jana1, 2, Editor
Yogeshwar, Pritam2, 3, Editor
Affiliations:
1 Technische Universität- Bergakademie Freiberg , ou_persistent22            
2 30. Kolloquium, 2023, Schmucker-Weidelt-Kolloquium für Elektromagnetische Tiefenforschung EMTF, External Organizations, ou_5026038            
3 Universität zu Köln, ou_persistent22            
Publ. Info: Potsdam : Deutsche Geophysikalische Gesellschaft e. V.
Pages: 146 Volume / Issue: 30 Sequence Number: 5 Start / End Page: 23 - 23 Identifier: ISSN: 2190-7021