overset mesh: the flat-tip outline (P5-3 option B) — cylinder_flag_outline_deformed_tip / cylinder_flag_patch_deformed{,_from}_tip take the tip's corner radius (t = the recorded semicircle, bit for bit; smaller = the benchmark's flat face between corner arcs sampled at the wall spacing, point count fixed across the deformation, the tip's corners kept off the hull source); pins: corner t reproduces the recorded outline, the 2.5 mm outline has the exact area excess with no collapsed spacing, the O-grid builds straight and at ± 80 mm cold and warm at ny 41/62; harness knob RTX_FSI2O_TIP_CORNER (default 0.01) on the cold and warm builds, printed in both headers; pinned-toolchain fmt on touched crates

Co-Authored-By: Claude Fable 5.1 <[email protected]>
Claude-Session: https://claude.ai/code/session_01LzcjQX7tvgn87CQCyg9Cfr

crates/specialized/rtx-cfd/tests/cylinder_flag_mms.rs

@@ -3,8 +3,8 @@
 //! S3 harness) — do the Stokes-limit and upwind orders survive the junction
 //! fillets' skew? Rungs at the benchmark's h = 0.41 / 41, 62, 82.
 
-use rtx_cfd::mesh::patch_gen::{cylinder_flag_patch, cylinder_flag_patch_deformed, FlagEdges};
 use rtx_cfd::mesh::PatchMesh;
+use rtx_cfd::mesh::patch_gen::{FlagEdges, cylinder_flag_patch, cylinder_flag_patch_deformed};
 use rtx_cfd::solvers::incompressible::{
     CurvilinearParameters, CurvilinearPisoSolver, NormalDiffusion, PatchConvection, PatchField,
 };