Eulerian SUPG advection-diffusion with symbolic BDF and Adams-Moulton orders (#657 follow-on) - #673

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feature/eulerian-supg-transport

Commits on Sep 3, 2026

Expose the BDF and Adams-Moulton coefficient symbols on the DDt managers

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claude
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f7d1a21
Pack and index auxiliary fields by DM field, not by position in mesh.vars

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e84dea9
Add the RotatingGaussian transport oracle; fix the integral-norm error for scalar variables

lmoresi
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ccfc23b
Extract the per-element timestep estimate shared by the advection-diffusion solvers

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6d8e2b7
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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b686530
Design note for the Eulerian SUPG solver; BDF2 becomes the default from the integrator study

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451efe3
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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2b9941c
Drop the integrator argument: order and theta already reach every safe scheme

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252165e
An accuracy-based timestep for the Eulerian solver; credit NengLu in the module and note

lmoresi
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417f7b8

Commits on Sep 4, 2026