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Looking for a method to model a transient DC current

Posted 2015年12月6日 GMT-5 17:52 Low-Frequency Electromagnetics, Materials Version 5.1 0 Replies

Junjie Tu
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Hi all,

I am going to model a transient DC as shown in the attached picture. Please find the attached picture and have a look.

As you can see it rises from 0 to 200kA and then drops to 80kA and finally remains steady at 80. I am interested in magnetic field excited by such current. I am aware of functions such as step or ramp function , but I still could not find any appropriate way to represent a polyline in COMSOL Multiphysics. Any idea on how to model this?

Also, once a current is modelled by a function, does COMSOL automatically take skin effect introduced by this rapid rate of change into account?

Thank you for your attention and patience.

Kind regards
Junjie Tu
0 Replies Last Post 2015年12月6日 GMT-5 17:52
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Hello Junjie Tu

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