Spherical shell convection (shell IVP)
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Script
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.. literalinclude:: ../../../examples/ivp_shell_convection/shell_convection.py

Output
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..
    Local videos aren't copied during build, so need to be put in /_static
.. video:: ../../_static/videos/shell_convection.mp4
   :width: 600
   :height: auto

..
    Zero-size image reference to get the thumbnail copied to _images
.. image:: images/shell_convection.png
    :width: 0
    :height: 0