collocated_zh_ghostproj Namespace Reference

Functions
	lattice_sdf (N, phi=0.125)
	drag (N, ghost, orders=None, mu=0.1, F=1e-3, dt=80.0, warm_tol=1e-7, tail=40, max_steps=4000)

Variables
	GPORD = tuple(int(v) for v in os.environ.get("GPORD", "1,2").split(","))
float	kref = 4.2920
	flush
dict	prev = {}
	Kc
	sc
	ipc
	dvc
	tc
	N
	ghost
	Kg
	sg
	ipg
	dvg
	tg
int	ec = 100 * (Kc - kref) / kref
int	eg = 100 * (Kg - kref) / kref
dict	oc = np.log(abs(prev["c"]) / abs(ec)) / np.log(N / prev["N"]) if prev else float("nan")
dict	og = np.log(abs(prev["g"]) / abs(eg)) / np.log(N / prev["N"]) if prev else float("nan")

Detailed Description

THE collocated ghost-projection experiment: Zick & Homsy drag, SolverColocated mode-0
(plain average + central grad(P), 1st order) vs the directional ghost-cell projection
(set_ghost_projection: ghost-closed divergence of the face-averaged field + gpCenterGrad
predictor/correction). Success = ghost order ~2 converging to the same Z&H limit — closing the
open problem of doc/collocated_second_order_open_problem.md. Pattern:
tests/study/staggered_zh_ghostproj.py (same warm-detector + tail protocol as the staggered
experiment and the mode-0 baselines).

Function Documentation

lattice_sdf()

collocated_zh_ghostproj.lattice_sdf	(		N,
			phi = 0.125
	)

Definition at line 17 of file collocated_zh_ghostproj.py.

Referenced by drag().

drag()

collocated_zh_ghostproj.drag	(		N,
			ghost,
			orders = None,
			mu = 0.1,
			F = 1e-3,
			dt = 80.0,
			warm_tol = 1e-7,
			tail = 40,
			max_steps = 4000
	)

Definition at line 32 of file collocated_zh_ghostproj.py.

References lattice_sdf().

Variable Documentation

GPORD

collocated_zh_ghostproj.GPORD = tuple(int(v) for v in os.environ.get("GPORD", "1,2").split(","))

Definition at line 30 of file collocated_zh_ghostproj.py.

kref

float collocated_zh_ghostproj.kref = 4.2920

Definition at line 65 of file collocated_zh_ghostproj.py.

flush

collocated_zh_ghostproj.flush

Definition at line 67 of file collocated_zh_ghostproj.py.

prev

dict collocated_zh_ghostproj.prev = {}

Definition at line 70 of file collocated_zh_ghostproj.py.

Kc

collocated_zh_ghostproj.Kc

Definition at line 72 of file collocated_zh_ghostproj.py.

sc

collocated_zh_ghostproj.sc

Definition at line 72 of file collocated_zh_ghostproj.py.

ipc

collocated_zh_ghostproj.ipc

Definition at line 72 of file collocated_zh_ghostproj.py.

dvc

collocated_zh_ghostproj.dvc

Definition at line 72 of file collocated_zh_ghostproj.py.

tc

collocated_zh_ghostproj.tc

Definition at line 72 of file collocated_zh_ghostproj.py.

N

collocated_zh_ghostproj.N

Definition at line 72 of file collocated_zh_ghostproj.py.

ghost

collocated_zh_ghostproj.ghost

Definition at line 72 of file collocated_zh_ghostproj.py.

Kg

collocated_zh_ghostproj.Kg

Definition at line 73 of file collocated_zh_ghostproj.py.

sg

collocated_zh_ghostproj.sg

Definition at line 73 of file collocated_zh_ghostproj.py.

ipg

collocated_zh_ghostproj.ipg

Definition at line 73 of file collocated_zh_ghostproj.py.

dvg

collocated_zh_ghostproj.dvg

Definition at line 73 of file collocated_zh_ghostproj.py.

tg

collocated_zh_ghostproj.tg

Definition at line 73 of file collocated_zh_ghostproj.py.

ec

int collocated_zh_ghostproj.ec = 100 * (Kc - kref) / kref

Definition at line 74 of file collocated_zh_ghostproj.py.

eg

int collocated_zh_ghostproj.eg = 100 * (Kg - kref) / kref

Definition at line 75 of file collocated_zh_ghostproj.py.

oc

dict collocated_zh_ghostproj.oc = np.log(abs(prev["c"]) / abs(ec)) / np.log(N / prev["N"]) if prev else float("nan")

Definition at line 76 of file collocated_zh_ghostproj.py.

og

dict collocated_zh_ghostproj.og = np.log(abs(prev["g"]) / abs(eg)) / np.log(N / prev["N"]) if prev else float("nan")

Definition at line 77 of file collocated_zh_ghostproj.py.