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<table>
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<tr>
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<th colspan="2" style="text-align:center;font-weight:bold">
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Magnetostatic electromagnet
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</th>
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</tr>
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<tr>
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<td style="text-align:center">
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<a href="https://gitlab.onelab.info/doc/tutorials/raw/master/Magnetostatic/screenshot1.png"><img src="https://gitlab.onelab.info/doc/tutorials/raw/master/Magnetostatic/screenshot1_512.png" width="100%"></a>
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</td>
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<td style="text-align:center">
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<a href="https://gitlab.onelab.info/doc/tutorials/raw/master/Magnetostatic/screenshot2.png"><img src="https://gitlab.onelab.info/doc/tutorials/raw/master/Magnetostatic/screenshot2_512.png" width="100%"></a>
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</td>
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</tr>
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<tr>
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<th colspan="2" style="text-align:center">
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<!--
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Download <a href="http://onelab.info/files/machines.zip">model archive (machines.zip)</a><br>
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-->
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Browse <a href="https://gitlab.onelab.info/doc/tutorials/tree/master/Magnetostatic/">model files</a>
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</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 `electromagnet.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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* Right-hand-side term of a Poisson problem
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* Onelab variables
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* Boundary conditions at infinity
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## Additional information
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This is the magnetostatic 2D model of an electromagnet.
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Only a quarter of the system is represented.
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Symmetry is accounted for by means of
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a Dirichlet boudary condition (bn=0) on the y-axis
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and a Neumann boundary condition (ht=0) on the x-axis.
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The coil has 1000 turns and is supplied with a current of 0.01A.
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A magnetic core of default relative magnetic permeability equal to
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(this value can be change by the user) is placed inside the coil.
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The boundary condition at infinity
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is accounted for exactly by means of a shell transformation (infinite elements).
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## References
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1. [GetDP documentation](http://getdp.info/doc/texinfo/getdp.html)
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<table width="100%">
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<tr>
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<td>
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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) 2012-2017 ULg-ULB.
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</td>
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</tr>
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</table> |
