mesh generation

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Hello, I am using an electromagnetic module to calculate the impact on human tissues and encountered an issue while importing a specific tissue. I would like to seek some advice. The specific details are as follows:

After importing the tissue, I am unable to perform the 'Physics-Controlled Mesh' operation. When attempting to use the 'User-Controlled Mesh', an error message appears: unable to generate a mesh for this domain, and surface intersections are not supported, among other issues. How should I proceed with mesh partitioning in this situation?!

To better align with other models I have constructed, I would like to adjust a certain surface of the kidney model to make it more rounded, specifically by bulging a particular part. How can I achieve this?

After importing the kidney model, I noticed that the relative positions of the two kidney tissues are fixed. If I need to adjust their positions individually — for example, if the distance between the two kidneys is too large and I want to bring them closer together — how can I do this? Alternatively, if the position of a kidney is too low relative to the coordinate system and I want to adjust its position, how should I proceed?

Thank you very much for your assistance!



1 Reply Last Post 7 mar 2025, 07:18 GMT-5
Hanna Gothäll COMSOL Employee

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Posted: 4 weeks ago 7 mar 2025, 07:18 GMT-5

Dear Zhang,

The recommended process of working with imported STL meshes is described in the following tutorial series:

https://www.comsol.com/model/stl-import-tutorial-series-30951

To shift the position of one of the kidneys, I recommend that you export the kidneys on two separate files. Then you can use a Transform attribute on the Import node that imports the kidney you want to move.

If you have further questions, please create a support case so that the support team can take a better look at your model.

Dear Zhang, The recommended process of working with imported STL meshes is described in the following tutorial series: https://www.comsol.com/model/stl-import-tutorial-series-30951 To shift the position of one of the kidneys, I recommend that you export the kidneys on two separate files. Then you can use a Transform attribute on the Import node that imports the kidney you want to move. If you have further questions, please create a support case so that the support team can take a better look at your model.

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