Improve stenosis

[keiyamamo]

This PR adds

1. Improvement of offset_stenosis.py. We use x-coordinate to determine the FSI region instead of sphere.
2. a folder data/models and a stl file for the offset stenosis problem. The reason for creating a folder data as a parent folder of models is that we might want to create other folder for storing data necessary to run simulations (right now we have data for boundary conditions in src/fsipy/simulations but should be moved later?)

Please let me know if you have suggestions! For now, the boundary ID in the mesh and ID in .json file do not always match, so the boundary IDs are hard-coded. It would be nice to improve this so that it is automated to create boundary conditions.

[johannesring]

Looks good. Can you show me the command you use to generate the mesh?

[keiyamamo]

Looks good. Can you show me the command you use to generate the mesh?

HI @johannesring The command I used is given here :)

[johannesring]

HI @johannesring The command I used is given here :)

Thanks, I missed that.

[keiyamamo]

@dbruneau-mie Could you please review this change? Here is also an animation of the flow field.

[keiyamamo]

Hi @dbruneau-mie
It would be nice if you could have a look on this.
Best,
Kei

[dbruneau-mie]

This looks good to me, but it would be nice to have a link or some guide on how to access the mesh/surfaces.

[keiyamamo]

@dbruneau-mie I'll add the instructions about the mesh! And yes viscosity is lowered to generate turbulence.

[codecov-commenter]

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[keiyamamo]

@dbruneau-mie @johannesring @jorgensd @KristianValen-Sendstad

As discussed in the previous meeting, we will move surface and mesh data to Zenodo.
At the same time, I added a README file inside simulations folder which will explains where to get the surface data and how to reproduce the mesh. Zenodo requires project name, so I will wait until we land on the name of the repository but will add necessary data as soon as we decide the name.