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<table>
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<tr>
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<th colspan="2">3D Magnetostatics and magnetic rigid-body forces</th>
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</tr>
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<tr>
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<td style="text-align:center"><img src="Magnetic-forces_screenshot1.png" width=100%></td>
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<td style="text-align:center"><img src="Magnetic-forces_screenshot2.png" width=100%></td>
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</tr>
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<tr>
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<th colspan="2">Browse <a href="https://gitlab.onelab.info/doc/tutorials/tree/master/MagneticForces/">model files</a>
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— Download <a href="http://onelab.info/files/MagneticForces.zip">zip archive</a></th>
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</tr>
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</table>
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## Quick start
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To run the model, open `magnus.pro` with Gmsh
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and click on the "Run" button in the left panel.
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## Features addressed in this tutorial
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* 3D Magnetostatics
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* Dual vector and scalar magnetic potentials formulations
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* Boundary condition at infinity with infinite elements
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* Maxwell stress tensor and rigid-body magnetic forces
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## Additional information
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This rather didactic tutorial solves the electromagnetic field
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and the rigid-body forces acting on a set of magnetic pieces
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of parallelepipedic or cylindrical shape.
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The tutorial model proposes the both dual 3D magnetostatic formulations:
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the magnetic vector potential formulation with spanning-tree gauging,
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and the scalar magnetic potential formulation.
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As in tutorial 2 (magnetostatic field of an electromagnet), a shell
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of so-called infinite elements is used here to impose the exact
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zero-field boundary condition at infinity.
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## References
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1. [GetDP documentation](http://getdp.info/doc/texinfo/getdp.html)
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----
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*This work was funded in part by the Walloon Region (WBGreen No 1217703 FEDO, WIST3 No 1017086 ONELAB) and by the Belgian Science Policy (IAP P7/02). Copyright (c) 2012-2018 ULiège-UCL.* |