scholarly journals Adding Magnetization to the Eddy Current Approximation of Maxwell's Equations.

2020 ◽  
Author(s):  
Christopher Siefert
Keyword(s):  
Eddy Current ◽  
Maxwell’S Equations ◽  
Maxwell's Equations ◽  
Current Approximation

On the Magneto-Heat Coupling Model for Large Power Transformers

2017 ◽  
Vol 22 (3) ◽  
pp. 683-711 ◽  
Author(s):  
Xujing Li ◽  
Shipeng Mao ◽  
Kangkang Yang ◽  
Weiying Zheng
Keyword(s):  
Heat Equation ◽  
Eddy Current ◽  
Maxwell’S Equations ◽  
Energy Exchange ◽  
Maxwell's Equations ◽  
Current Model ◽  
Coupling Model ◽  
Power Transformers ◽  
Weak Formulation ◽  
Large Power

AbstractThis paper studies the magneto-heat coupling model which describes iron loss of conductors and energy exchange between magnetic field and Ohmic heat. The temperature influences Maxwell's equations through the variation of electric conductivity, while electric eddy current density provides the heat equation with Ohmic heat source. It is in this way that Maxwell's equations and the heat equation are coupled together. The system also incorporates the heat exchange between conductors and cooling oil which is poured into and out of the transformer. We propose a weak formulation for the coupling model and establish the well-posedness of the problem. The model is more realistic than the traditional eddy current model in numerical simulations for large power transformers. The theoretical analysis of this paper paves a way for us to design efficient numerical computation of the transformer in the future.

Sumudu Applications to Maxwell's Equations

PIERS Online ◽  
2009 ◽  
Vol 5 (4) ◽  
pp. 355-360 ◽  
Author(s):  
Fethi Bin Muhammad Belgacem
Keyword(s):  
Maxwell’S Equations ◽  
Maxwell's Equations

Maxwell’s Equations versus Newton’s Third Law

2018 ◽  
Author(s):  
Glyn Kennell ◽  
Richard Evitts
Keyword(s):  
Electric Fields ◽  
Maxwell’S Equations ◽  
Maxwell's Equations ◽  
Simulated Data ◽  
Numerical Data ◽  
Transport Equations ◽  
Concentration Gradients ◽  
Third Law

The presented simulated data compares concentration gradients and electric fields with experimental and numerical data of others. This data is simulated for cases involving liquid junctions and electrolytic transport. The objective of presenting this data is to support a model and theory. This theory demonstrates the incompatibility between conventional electrostatics inherent in Maxwell's equations with conventional transport equations. <br>

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