PDE for mesh element matrix not valid

Question

Anosh Mevawalla 2022-10-8

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https://ww2.mathworks.cn/matlabcentral/answers/1820315-pde-for-mesh-element-matrix-not-valid

编辑： Prateek 2022-11-16

I am trying to import a mesh into the pdecreate command in matlab but i keep getting error that the elements are not connected correctly. The code is attached.

How do i get the element matrix to be correctly input into matlab?

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Answer 1

Prateek 2022-10-17

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编辑：Prateek 2022-11-16

Hi Anosh,

The nodes matrix in “untitled.m” has all Z's at 0, while elements are tets (4 nodes).

In a solid geometry, all nodes sit in the same plane, and thus the definition in “untitled.m” is invalid. Please make sure the input data for “geometryFromMesh” is consistent for either 2-D or 3-D case.

For details, refer to the documentation: Create 2-D or 3-D geometry from mesh - MATLAB geometryFromMesh (mathworks.com)

Hope this resolves your issue.

Regards,

Prateek.