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Feature/cull pairs #333

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Feature/cull pairs #333

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brbass
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@brbass brbass commented Feb 18, 2025

Summary

This PR does two things:

  • Adds a simpler sum density for FSISPH
  • Adds an option to remove connectivity for given points

ToDo :

  • Annotate RELEASE_NOTES.md with notable changes.
  • Create LLNLSpheral PR pointing at this branch. (PR#)
  • LLNLSpheral PR has passed all tests.

@brbass brbass marked this pull request as draft February 19, 2025 00:04
@brbass brbass requested review from jmikeowen and jmpearl February 26, 2025 18:48
@@ -233,6 +233,10 @@ secondDerivativesLoop(const typename Dimension::Scalar time,
j = pairs[kk].j_node;
nodeListi = pairs[kk].i_list;
nodeListj = pairs[kk].j_list;
if (pairs[kk].f_couple < 1.0e-16)
{
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I believe this will break fsi. Depending upon the node coupling algorithm, f_couple can be zero at damage interfaces and this will give non-physical behavior when compression happens along a damage interface. FSI has it's own decoupling logic to handle damage fronts.

What was the need for the additional decoupling?

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