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SECOND-ORDER DIVERGENCE-FREE FEM FOR MAGNETOHYDRODYNAMICS USING LAGRANGE POLYNOMIALS

AbstractMaxwell’s laws state that the divergence of a magnetic field always remains zero. In thecontinuous setting this is true for the magnetohydrodynamics equations. However, in thediscrete setting, the solution does not always remain divergence-free. The goal of this project isto find two-dimensional finite element meshes for which the magnetic field solution to themagnetohydrodynamics equations remained divergence-free. The report includes the derivationfor a condition of a divergence-free mesh, examples of meshes for which this condition holdstrue, and lastly numerical results to confirm that the solutions using these meshes aredivergence-free.

Identiferoai:union.ndltd.org:UPSALLA1/oai:DiVA.org:uu-506010
Date January 2023
CreatorsBjörklund, Erik, Mårtensson, Peter, Waltman, Noah
PublisherUppsala universitet, Institutionen för informationsteknologi
Source SetsDiVA Archive at Upsalla University
LanguageEnglish
Detected LanguageEnglish
TypeStudent thesis, info:eu-repo/semantics/bachelorThesis, text
Formatapplication/pdf
Rightsinfo:eu-repo/semantics/openAccess
RelationMATVET-F ; 23030

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