verify_poiseuille_ghostproj Namespace Reference

Functions
	channel_sdf (nx, ny, nz, ylo, yhi)
	run (N, ghost, rho=1.0, mu=0.1, dt=50.0, F=0.01, max_steps=400)
	main ()

Detailed Description

Verification (flow, ghost projection): plane Poiseuille through an SDF channel with the
EXPERIMENTAL directional ghost-cell projection active (set_ghost_projection + cutcell_pressure).

The steady parabola u(y) = F/(2 mu)(y-ylo)(yhi-y) is exactly quadratic, so a second-order scheme
must reproduce it pointwise to solver tolerance. For this unidirectional flow the projection RHS
is identically zero (u* depends on y only, v = w = 0, and every ghost closure sees zero data), so
this gates that the ghost-projection machinery — overlay build, binary surrogate, BiCGStab — does
NOT corrupt an exact solution (classification/indexing bugs inject spurious divergence and break
the parabola). The closure-sign/theta physics is gated by tests/study/staggered_zh_ghostproj.py.

Single-rank only (ghost projection v1). Pattern: scripts/verify_poiseuille_flow.py.

Function Documentation

channel_sdf()

verify_poiseuille_ghostproj.channel_sdf	(		nx,
			ny,
			nz,
			ylo,
			yhi
	)

Definition at line 24 of file verify_poiseuille_ghostproj.py.

Referenced by run().

run()

verify_poiseuille_ghostproj.run	(		N,
			ghost,
			rho = 1.0,
			mu = 0.1,
			dt = 50.0,
			F = 0.01,
			max_steps = 400
	)

Definition at line 31 of file verify_poiseuille_ghostproj.py.

References channel_sdf().

Referenced by main().

main()

verify_poiseuille_ghostproj.main

(

)

Definition at line 65 of file verify_poiseuille_ghostproj.py.

References main(), and run().

Referenced by main().