PDE Model Boundary Conditions

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Patrick Frey
Patrick Frey 2024-2-29
评论： Patrick Frey 2024-3-1
Hi Everyone,
I have a question regarding the Matlab PDE Model Boundary Conditions.
Currently, I am working with a 2D mesh with heatflux on one egdes. This egdes has 9 nodes. When I looked at state.u I recognized that this is a 1x12 array. But why?

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Torsten
Torsten 2024-2-29
编辑：Torsten 2024-2-29
If you output state.x and state.y in the function, you can see to which evaluation points state.u belongs.
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Torsten
Torsten 2024-3-1
If you use a heatflux condition, the temperatures at the boundary are not known in advance. I'm not sure how the PDE Toolbox approximates the temperatures in the node points. Maybe with some helper points to approximate dT/dn in the node points ?
But if you need this information reliably, you should contact MATLAB support.
Patrick Frey
Patrick Frey 2024-3-1
Thank you very much for your help

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