Volume mesh error

Coreform Cubit Meshing
#1

Hi,

My model has 5 faults and I have been encountering problems with meshing the volume. The error message is shown below and I have uploaded the journal file as well. The error numbers indicated below seem to point to an ID number of edge on a particular mesh unit. Is that correct? Any thoughts on moving forward with this would be appreciated. Thank you.

faults_CSIMSOFT.jou (2.4 KB)

ERROR:
Bounding mesh has connectivity problems.
(Bounding mesh has odd Euler characteristic -1.)
ERROR:
Mesh of Volume 3 is invalid.
ERROR:
Curve is meshed, but end vertex is not.
ERROR:
Curve is meshed, but start vertex is not.
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005107): ERR 5107 : 991 WITH 7
ERROR:
(-1005106): ERR 5106 : 991
ERROR:
(-1005602): ERR 5602 : 1
ERROR:
Unable to generate empty mesh
ERROR:
Volume 5 (Volume 5) meshing unsuccessful.
ERROR:
1 volume(s) did not mesh.

#2

Adding these three commands before meshing will allow the model to mesh.

Surface 44 48 51 46 58 45 43 49 50 47 55 57 59 54 56 size 650
surface all sizing function linear neighbor 5
set keep invalid mesh on

All of the faults are decreased to a smaller size. This allows better resolution where fault lines comes very close to each other, but do not intersect.

The sizing function allows for better transition to large size away from the fault lines.