Magnetic Field Generation in Blender

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I’d like to share my recent work on using Blender to solve physics equations such Biot-Savart Law which describe the magnetic field generated from a current. I’m using Blender’s geometry nodes to do this, the images below show some magnetic field plots for different types of coils!

Magnetic field of a 3-turn solenoid

coilcraft2014VS_render_1
coilcraft2014VS_render_13840×2160 2.11 MB

Magnetic field inside a toroid

ToroidT68_render2
ToroidT68_render21920×1080 480 KB

Magnetic of an odd-shaped coil

render4
render41920×1080 148 KB

Render of a 8-turn solenoid on a PCB and its magnetic field

render16
render163840×2160 1.15 MB

render15
render153840×2160 721 KB

Fun animation video showing how the magnetic field changes as the coil dimensions change

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Neat! Can you tell me how you modelled the 2nd img? Or is that GN as well?

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Thanks! Yes the toroid image was done mostly in geometry nodes, used a spiral curve and then curve modifier for the windings

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I featured you on BlenderNation, have a great weekend!