OpenFOAM: negative volumes on good looking mesh. Empty sample results.

blockMesh defined with incorrect topology:


Far nodes:


4   5
0   1


Near nodes:

7  6
3  2


I used topo 0 1 2 3 4 5 6 7 and the mesh created okay, with warnings during blockMesh:

 Creating block mesh topology
--> FOAM Warning :
    From function cellModel::mag(const labelList&, const pointField&)
    in file meshes/meshShapes/cellModel/cellModel.C at line 128
    zero or negative pyramid volume: -1.66667e-05 for face 0



(ignored, obviously).  On sample, tets could not be created.  checkMesh showed all cells to be stretched and negative volume; paraFoam showed them as okay.

Anyway, using the (correct) topo  : 3 2 1 0 7 6 5 4

fixed all this.

Guitar stuff.

BT feat Jes.  Every other way.  Guitar pickings.

xchat

interesting

openFoam errors and fixes!

From the terminal running paraFoam:

--> FOAM FATAL IO ERROR:
Please supply the offsetMode as one of
3
(
uniform
nonuniform
normal
)

This was from using Paraview 3.12.0 with openFoam 2.3.

Installing updated foam and paraview (well, parafoam) fixed this.  The same directory now works fine.

yorek Bernisson, Golden compass.

openfoam links

Removing bad cells from a mesh:

http://www.cfd-online.com/Forums/openfoam/68203-how-delete-cells-based-checkmesh.html

http://openfoamwiki.net/index.php/SetSet

Colour directories in bash

export LS_COLORS='di=00'

Works!

export LS_COLORS='di=07'

is clear.

0 = default colour
1 = bold
4 = underlined
5 = flashing text
6 = no change
7  = reverse field
8 = black
9 = strikethrough
10 - 29= no change
30  = light green
31  = red
32  = green
33  = orange
34  = blue
35  = purple
36  = cyan
37  = grey
38 = underline
39 = no change
40  = black background
41  = red background
42  = green background
43  = orange background
44  = blue background
45  = purple background
46  = cyan background
47  = grey background
90  = dark grey
91  = light red
92  = light green
93  = yellow
94  = light blue
95  = light purple
96  = turquoise
100 = dark grey background
101 = light red background
102 = light green background
103 = yellow background
104 = light blue background
105 = light purple background
106 = turquoise background