rtx-cfd: PatchConvection::TvdVanAlbada — van Albada deferred correction on the curvilinear predictor (downwind-side linear weight, gradient-ratio r over the face d lengths, far-upwind across the opposite face, boundary faces upwind); annulus MMS orders 2.10/1.69 at 0.24× upwind; cylinder-flag MMS orders 1.98/1.97 (1.06× upwind — diffusion-dominated, recorded); knobs RTX_OVERSET_CFD1_TVD, RTX_OVERSET_MAX_ROUNDS, RTX_CF_SCHEME

Co-Authored-By: Claude Fable 5.1 <[email protected]> Claude-Session: https://claude.ai/code/session_01X2GmJXeQ2njUecEKiJZ1G2
2026-09-06 00:21:48 -07:00
parent 02c855b9c4
commit 5f780447de
7 changed files with 155 additions and 8 deletions
@@ -84,7 +84,7 @@ async fn patch_with_exact_acceptors(
        normal_diffusion: diffusion,
        ..CurvilinearParameters::default()
    };
-    let convecting = convection == PatchConvection::Upwind;
+    let convecting = convection != PatchConvection::None;
    let mut solver = CurvilinearPisoSolver::new(config, params, mesh)?;
    solver.set_boundary_velocity(|x, y, _| (u_exact(x, y), v_exact(x, y)));
    solver.set_momentum_source(move |x, y, _| source(x, y, convecting));