Particle transport: repopulation, mid-time swarm step, viscoelastic stress history on particles; conditioning guard in the cells fit - #713

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feature/particle-repopulation

Sep 9, 2026

Commits on Sep 9, 2026

Swarm.repopulate and population control; the cells fit guards against ill-conditioned cells

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claude
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80ce199
Swarm advection: mid-time velocity for the RK2 mid-point stage

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9b1305e
Viscoelastic stress history on particles: Lagrangian_Swarm as the Stokes solver's DFDt

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7fe205a
Docs: the stress-patch discrepancy between nodal and particle histories, recorded as open

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4a5533f
Review (#713): nearest-neighbour distances by kd-tree in the cap path; PETSc<3.24 allocation workaround in repopulate

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0fc612b