Adding test for EP coupling 1D to 3D mesh

[javijv4]

Current situation

resolves #474

Release Notes

• AddedsvMultiPhysics/tests/cases/cep/cylinder_purkinje_1d3d

Code of Conduct & Contributing Guidelines

• I agree to follow the Code of Conduct and Contributing Guidelines.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 67.72%. Comparing base (2f17399) to head (d2b0846).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #475      +/-   ##
==========================================
+ Coverage   67.52%   67.72%   +0.19%     
==========================================
  Files         169      169              
  Lines       32671    32671              
  Branches     5728     5728              
==========================================
+ Hits        22062    22127      +65     
+ Misses      10472    10407      -65     
  Partials      137      137              

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[kko27]

This looks like a good test case to me! I think we should include documentation on this coupling feature in our multi physics documentation website: https://simvascular.github.io/documentation/multi_physics.html

[kko27]

I was curious about what setting -1.0 does to this projection_tolerance parameter?

[javijv4]

If this parameter is set to a negative value, the code looks for the nearest neighbor, regardless of how far it is. If it is a positive value, the code will only accept nearest neighbors below that value. In this case we need every node to be matched, so we used a negative value (if not some nodes would not be coupled)

[javijv4]

@ktbolt can you take a look at this? Thanks!

[ktbolt]

Looks good !