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Navier-Stokes with Eulerian SUPG momentum transport, and a partition-independent cell size (#687) - #688

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lmoresi merged 55 commits into

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feature/navier-stokes-supg

Sep 8, 2026

Merged

Navier-Stokes with Eulerian SUPG momentum transport, and a partition-independent cell size (#687)#688
lmoresi merged 55 commits into
developmentfrom
feature/navier-stokes-supg

Commits on Sep 3, 2026
- Expose the BDF and Adams-Moulton coefficient symbols on the DDt managers
  
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- Pack and index auxiliary fields by DM field, not by position in mesh.vars
  
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- Add the RotatingGaussian transport oracle; fix the integral-norm error for scalar variables
  
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- Extract the per-element timestep estimate shared by the advection-diffusion solvers
  
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- Skip the mesh-owned multigrid pickup for a solver that owns its preconditioner
  
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  9c8a125
- Eulerian advection-diffusion with SUPG: BDF and Adams-Moulton orders from the symbolic history
  
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- Design note for the Eulerian SUPG solver; BDF2 becomes the default from the integrator study
  
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- Integrator study, res 64: BDF3 grows slowly on pure advection at any Courant number
  
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  f076781
- AdvDiffusionSUPG takes the semi-Lagrangian solver's interface: a drop-in replacement
  
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- Drop the integrator argument: order and theta already reach every safe scheme
  
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- An accuracy-based timestep for the Eulerian solver; credit NengLu in the module and note
  
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  417f7b8
Commits on Sep 4, 2026
Commits on Sep 5, 2026
Commits on Sep 6, 2026
Commits on Sep 7, 2026

Commits

Commits on Sep 3, 2026

Commits on Sep 4, 2026

Commits on Sep 5, 2026

Commits on Sep 6, 2026

Commits on Sep 7, 2026