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Electromagnetic Field in a wire loop
Posted 14 nov 2015, 20:44 GMT-5 Low-Frequency Electromagnetics 3 Replies
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Hi dear all,
I am a new user of COMSOL. I am trying to develop a simulation for magnetic field in a wire loop as a result of current passing through it. I defined a geometry with 0.01 mm radius of wire. I added "copper" as a material in all domains. Then I added two types of physics from AC/DC module:
1. Electric Currents with a potential of 20 V applied to one end of wire and Ground on other end.
2. Magnetic Fields (and Magnetic Field Formulation alternatively)
I added "stationery" study. Now when I compute the solution for the study, I get a simulation showing Magnetic Flux Density Norm (mef), same thing in results section. My problem is that I want to see magnetic field lines in and around the wire. I would highly appreciate any type of help in this context. I have attached my file.
~Hasan
I am a new user of COMSOL. I am trying to develop a simulation for magnetic field in a wire loop as a result of current passing through it. I defined a geometry with 0.01 mm radius of wire. I added "copper" as a material in all domains. Then I added two types of physics from AC/DC module:
1. Electric Currents with a potential of 20 V applied to one end of wire and Ground on other end.
2. Magnetic Fields (and Magnetic Field Formulation alternatively)
I added "stationery" study. Now when I compute the solution for the study, I get a simulation showing Magnetic Flux Density Norm (mef), same thing in results section. My problem is that I want to see magnetic field lines in and around the wire. I would highly appreciate any type of help in this context. I have attached my file.
~Hasan
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3 Replies Last Post 16 nov 2015, 10:32 GMT-5
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Posted:
9 years ago
Hi
Have you already looked at this model?
www.comsol.com/model/electromagnetic-forces-on-parallel-current-carrying-wires-131
You can also find it in the application libraries (file>application libraries> “search: parallel wires”)
It’s in 2D but you can base your 3D model on this model.
To see magnetic field lines, run the simulation then right click on “Magnetic Flux Density Norm” in the results section and add “streamline”
Then you have to add some boundaries to the selection section of the streamline settings.
Dara
Have you already looked at this model?
www.comsol.com/model/electromagnetic-forces-on-parallel-current-carrying-wires-131
You can also find it in the application libraries (file>application libraries> “search: parallel wires”)
It’s in 2D but you can base your 3D model on this model.
To see magnetic field lines, run the simulation then right click on “Magnetic Flux Density Norm” in the results section and add “streamline”
Then you have to add some boundaries to the selection section of the streamline settings.
Dara
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Posted:
9 years ago
Just use the mf interface with a 2D Axisymmetric model, then create a contour plot with the expression "Aphi*r" as shown in the attached model. Note that the attached is for a Helmholtz coil, so you could just modify this model to suit your needs. I have used infinite elements in this model too, for a more accurate far field representation. it is a version 5.1 model, hopefully will be a good starting point for you.
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Posted:
9 years ago
Thanks alot Dara and MortalWombat :)