[gu1]

Hello,

First, I'm using OpenFOAM 5.0 (komegaSST), the mesh and all my settings:

Re=5300 (R = 0,006035 - L=5D)
DROPBOX

First points:

yPlus yPlus write:
writing object yPlus
patch pipe y+ : min = 0.0264039, max = 0.0322391, average = 0.0302202

For this reason (y + ~ 1) and according Tobi, I set my settings:

-boundary conditions for walls:
U=(0,0,0), p=zeroGradient, k=1e-15, omega=omegaWallFunction, nut=calculated

I would like to discuss my settings, since the solver is taking a lot of time to change from timeStep.
This is my first contact with the Pimple solver.

Thank you

/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 5.x |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Exec : checkMesh
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create polyMesh for time = 0

Time = 0

Mesh stats
points: 117705
faces: 343872
internal faces: 335040
cells: 113152
faces per cell: 6
boundary patches: 3
point zones: 0
face zones: 0
cell zones: 0

Overall number of cells of each type:
hexahedra: 113152
prisms: 0
wedges: 0
pyramids: 0
tet wedges: 0
tetrahedra: 0
polyhedra: 0

Checking topology...
Boundary definition OK.
Cell to face addressing OK.
Point usage OK.
Upper triangular ordering OK.
Face vertices OK.
Number of regions: 1 (OK).

Checking patch topology for multiply connected surfaces...
Patch Faces Points Surface topology
inlet 1088 1121 ok (non-closed singly connected)
outlet 1088 1121 ok (non-closed singly connected)
pipe 6656 6720 ok (non-closed singly connected)

Checking geometry...
Overall domain bounding box (0 -0.006035 -0.006035) (0.06035 0.006035 0.006035)
Mesh has 3 geometric (non-empty/wedge) directions (1 1 1)
Mesh has 3 solution (non-empty) directions (1 1 1)
Boundary openness (-5.12104e-17 8.39828e-15 2.02215e-16) OK.
Max cell openness = 2.83005e-16 OK.
Max aspect ratio = 5.08267 OK.
Minimum face area = 5.49742e-08. Maximum face area = 3.44064e-07. Face area magnitudes OK.
Min volume = 3.33236e-11. Max volume = 9.29134e-11. Total volume = 6.89573e-06. Cell volumes OK.
Mesh non-orthogonality Max: 30.2816 average: 5.44649
Non-orthogonality check OK.
Face pyramids OK.
Max skewness = 0.651474 OK.
Coupled point location match (average 1.55095e-09) OK.

Mesh OK.

End