Modeling of streamers in transformer oil using OpenFOAM

Purpose – A model for streamers based on charge transport has been developed by MIT and ABB. The purpose of this paper is to investigate the consequences of changing numerical method from the finite element method (FEM) to the finite volume method (FVM) for simulations using the streamer model. The...

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Bibliographic Details
Published in:Compel 2014-07, Vol.33 (4), p.1272-1281
Main Authors: Lavesson, Nils, Jogenfors, Jonathan, Widlund, Ola
Format: Article
Language:English
Subjects:
Breakdowns
Charge transport
Collaboration
Computer simulation
Convergence
Electric fields
Electrical & electronic engineering
Electricity distribution
Engineering
Finite element analysis
Finite element method
Finite volume method
Hydrocarbons
Hypotheses
Mathematical analysis
Mathematical models
Mineral oils
Numerical analysis
Numerical methods
Phase transitions
Simulation
Solvers
Studies
Three dimensional
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Summary:Purpose – A model for streamers based on charge transport has been developed by MIT and ABB. The purpose of this paper is to investigate the consequences of changing numerical method from the finite element method (FEM) to the finite volume method (FVM) for simulations using the streamer model. The new solver is also used to extend the simulations to 3D. Design/methodology/approach – The equations from the MIT-ABB streamer model are implemented in OpenFOAM which uses the FVM. Checks of the results are performed including verification of convergence. The solver is then applied to some of the key simulations from the FEM model and results presented. Findings – The results for second mode streamers are confirmed, whereas the results for third mode streamers differ significantly leading to questioning of one hypothesis proposed based on the FEM results. The 3D simulations give consistent results and show a way forward for future simulations. Originality/value – The FVM has not been applied to the model before and led to more confidence in second mode result and revising of third mode results. In addition the new simulation method makes it possible to extend the results to 3D.
ISSN:0332-1649
2054-5606
DOI:10.1108/COMPEL-12-2012-0361