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2D Axisymmetric
Posted May 17, 2011, 5:08 p.m. EDT Low-Frequency Electromagnetics, RF & Microwave Engineering, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.1 1 Reply
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I recently started dealing with AC/DC electromagnetics. I have a quick question on the 2D axisymmetric model. Ideally with an air core, analytically I figure out that at the center of my electromagnet it should be about 1.7 T. If I design the model using 2D axisymmetric and keeping the same dimensions, I get a value of 0.25 T. What is the reason for this? I understand the basic differences that arise from FEA and analytical but this seems too big of an error. In the past I have heard of the 2*pi*r multiplier. Is this what I am not accounting when I plot the magnetic flux density?
Thanks in advance
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you don't need a multiplier for the magnetic flux density. Something must be wrong with your model. You should submit the model (or analytics) and more information about the analytical approach, so people can have a look at it.
Cheers Edgar