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Simulate magnetic field generated by planar coil
Posted Mar 4, 2016, 2:50 a.m. EST Low-Frequency Electromagnetics 1 Reply
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Hi, everyone,
I want to simulate the DC magnetic field generated by a planar coil when a static current flows through the coil. The attach files give the shape and the dimension draw by solidworks.
Now i have built the .mph file. But I don't konw how to difine the domain or boundary conditions to drive the current into the coil. So I can't run my simulation. My mph file is attached below (I deleted the mesh. If not, the size of mph file will be too big). Can anybody give some suggestions?
Thank you very much.
I want to simulate the DC magnetic field generated by a planar coil when a static current flows through the coil. The attach files give the shape and the dimension draw by solidworks.
Now i have built the .mph file. But I don't konw how to difine the domain or boundary conditions to drive the current into the coil. So I can't run my simulation. My mph file is attached below (I deleted the mesh. If not, the size of mph file will be too big). Can anybody give some suggestions?
Thank you very much.
1 Reply Last Post Mar 4, 2016, 11:26 a.m. EST
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Posted:
9 years ago
Hi Humphrey,
For modeling coils and magnetic fields due to the current in the coil correctly, you would need to have a closed loop. In your particular geometry, you could add a bridge to connect the two endings as shown in the attached image. The MUST have closed loop configuration in the geometry is discussed in this latest blog post:
www.comsol.com/blogs/modeling-coils-in-the-acdc-module/
You could remove the small section of that bridge in the Magnetic Fields physics and apply the Single Turn Coil in the coil geometry with "Boundary Feed" and "Ground" as done in this inductor example (www.comsol.com/model/modeling-of-a-3d-inductor-10299).
Best Regards,
Nirmal
For modeling coils and magnetic fields due to the current in the coil correctly, you would need to have a closed loop. In your particular geometry, you could add a bridge to connect the two endings as shown in the attached image. The MUST have closed loop configuration in the geometry is discussed in this latest blog post:
www.comsol.com/blogs/modeling-coils-in-the-acdc-module/
You could remove the small section of that bridge in the Magnetic Fields physics and apply the Single Turn Coil in the coil geometry with "Boundary Feed" and "Ground" as done in this inductor example (www.comsol.com/model/modeling-of-a-3d-inductor-10299).
Best Regards,
Nirmal
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