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Current Source and violation of Maxwell-Ampère’s law
Posted Jan 3, 2013, 12:29 a.m. EST Low-Frequency Electromagnetics, Battery Design, Materials, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 4.4 1 Reply
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I have setup a model using both Electric Currents and distributed ODE and PDE interfaces using a simple 2D square geometry.
One boundary of the geometry is set as ground and another used to apply an external current density. I'm also injecting a current into the domain using the "Current Source" option. This current is formulated using a set of ODE equations.
The model solves but I am getting very large errors when validating the model using Kirchhoff's laws.
COMSOL's documentation state that the current source option should be used "with caution as it may violate the current conservation law that is inherent in Maxwell-Ampère’s law".
Has anybody had any similar experience using the Current Source? Did you observe any violations in Maxwell-Ampère’s law? If so how to work around this problem?
Hello Amr Al Abed
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James