verify_colocated_poiseuille Namespace Reference

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

Detailed Description

Phase-2 verification (collocated grid): plane Poiseuille flow through an SDF channel, driven by a body
force, with Robust-Scaled cut-cell IBM no-slip walls and NO pressure projection (cutcell_pressure=False).

Runs the SAME setup on both grids: sdflow.Solver (staggered) and sdflow.SolverColocated (cell-centered).
The steady centreline velocity must match the analytic parabola U_max = F*H^2/(8*mu) and the error must
shrink with resolution on the collocated grid too. The u-component's wall-normal (y) location is the cell
centre on BOTH grids, so the two solvers should agree closely. This exercises the collocated {0,0,0} IBM
offset + implicit diffusion path (advection is ~0 for unidirectional flow; it is stressed in phase 3).

Function Documentation

channel_sdf()

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

Definition at line 20 of file verify_colocated_poiseuille.py.

Referenced by run().

run()

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

Definition at line 27 of file verify_colocated_poiseuille.py.

References channel_sdf().

Referenced by main().

main()

verify_colocated_poiseuille.main

(

)

Definition at line 56 of file verify_colocated_poiseuille.py.

References main(), and run().

Referenced by main().