Omar SobhandClaude Fable 5.1 62df6bd628 rtx-cfd: overset P3b — the reclassification impulse located (the fringe ring is a staircase of the interpolated velocities' mass defect) and removed by a converged fringe flux balance (default on): falsifier max spike 594 → 5.50 N/m at the FSI2 step (staircase 6490), 10.95 / 16.79 at dt/2 / dt/4 (12600 / 25600), rms spike 0.07% of the force, far probe 6 (7900), KE per event 4.9e-3 J/m falling with Δt (2.6 fixed) ...

OverlapMap::balance_fringe_fluxes: Gauss–Seidel through the prescribed faces of
every fringe cell to 1e-12 of the prescribed flux scale (≤ 50 sweeps), after
every fringe stamping (3 fixed sweeps 101 N/m, 10 sweeps 5.5 — converged is the
rule). OversetParameters: fringe_flux_balance (default on, RTX_OVERSET_NO_BALANCE
off), fringe_balance_tolerance, refill_turned_active (measured no effect: 593.7 →
593.8; kept as the record), stall_rounds opt-in. P3b locating trace
RTX_OVERSET_TRACE_SP (continuity source by class change in cell volumes/step,
stored-pressure jump of turned-active cells): the flipped cells' mass source
≤ 6e-3 cell volumes/step, their stored pressure 5–10% of the range off their
neighbours (4.4% on the static MMS — the meshes' discretization disagreement).
Knock-outs refuted (RTX_OVERSET_H1 keep own face velocities, H4 no warm start,
pressure refill): 593–597 N/m each. S4 MMS with the balance: velocity errors
within 0.1% of the pinned values, the background's overlap mass defect 1e-13 by
construction, pressure errors unchanged. overset_mms prints pressure
diagnostics; overset_falsifier records the balanced ladder (regression guard
20 N/m at dt; RTX_OVERSET_FALSIFIER_STRICT asserts the registered gates — (ii)
holds at dt, misses at dt/2, dt/4; (iv) fails: residual ∝ 1/Δt^0.8).

Co-Authored-By: Claude Fable 5.1 <[email protected]>
Claude-Session: https://claude.ai/code/session_01X2GmJXeQ2njUecEKiJZ1G2

2026-09-05 19:16:16 -07:00

..

mod.rs

rtx-cfd: overset P3b — the reclassification impulse located (the fringe ring is a staircase of the interpolated velocities' mass defect) and removed by a converged fringe flux balance (default on): falsifier max spike 594 → 5.50 N/m at the FSI2 step (staircase 6490), 10.95 / 16.79 at dt/2 / dt/4 (12600 / 25600), rms spike 0.07% of the force, far probe 6 (7900), KE per event 4.9e-3 J/m falling with Δt (2.6 fixed)

2026-09-05 19:16:16 -07:00