Hi Get_Barried,

Thank you for the reply. Unfortunately I can’t share the link to public. Do you have any idea, what the reason can be?

Mesh Operation:

Mesh Operation

Name

Operation 1

```
Tet-dominant
Hex-dominant automatic (only CFD)
Hex-dominant parametric (only CFD)
Hex-dominant automatic "wind-tunnel/external flow" (only CFD)
Hex-dominant (beta preview)
Properties
```

Bounding Box Discretization

Properties

Bounding Box geometry primitive

Background Mesh Box

Number of cells in x direction

105

Number of cells in y direction

30

Number of cells in z direction

30

Create multiregion mesh

Parallel Processing

Properties

Number of computing cores

Castellated mesh controls

Properties

Max number of cells per processor

40000000

Global max number of cells

100000000

Cell limit for refinement termination

10

Max processor load imbalance

0.2

Buffer cell count between refinement levels

2

Minimum angle for feature detection [°]

45

Allow free standing zone faces?

Snap controls

Properties

Mesh-to-geometry conformation iterations

10

Max relative distance for snap point search

2

Max iterations for meshing algorithm

150

Max iterations for removal of bad cells

15

Max iterations for mesh conformation

10

Implicitly detect features for snapping?

Use ‘feature refinement’ for snapping?

Detect features between multiple surfaces?

Layer adding controls

Properties

Use relative size for layers?

Max cancelled layers near sharp features

0

Max face angle for layer generation [°]

180

Min angle between patches for layers [°]

75

Max iterations for snapping of layers

10

Max smoothing iterations for surface normals

5

Max smoothing iterations for internal mesh

5

Max smoothing iterations for layer thickness

10

Max face aspect ratio for layers

0.55

Max ratio of layer thickness to medial length

0.35

Angle for medial axis points pick-up [°]

90

Buffer cells for faces where layers terminate

0

Max overall iterations for layer addition

10

Max iterations with strict quality controls

20

Mesh quality controls

Properties

Max non-orthogonality angle [°]

75

Max boundary face skewness angle [°]

20

Max internal face skewness angle [°]

4

Max concaveness [°]

80

Min cell volume [m³]

1e-13

Min tetrahedron-quality for cells

-1e+30

Min face area [m²]

-1

Min cosine of face twist

0.005

Min normalized cell determinant

0.005

Min face weight

0.01

Min volume ratio between neighbouring cells

0.0075

Min cosine of face twist between adjacent triangle faces

-1

Smoothing iterations for error distribution

4

Relative scale-back of erroneous points

0.75

Relaxed max non-orthogonality angle [°]

80

Merge tolerance

0.000001

Geometry Primitives

Background Mesh Box

Material Point

Cartesian Box-lower

Cartesian Box-upper

Mesh Refinements

alles-ausser-wings-susp-mountings

Wings

mountings-susp-bars

wheelhubs

Radiator

Feature

Region

Carlayer

Floor

MRFF

MRFR

Mesh Operation Event Log

The tesselated surface is not closed. There could be a problem with the CAD geometry (such as self-intersections). Please inspect your geometry. Trying to proceed anyway.

Mesh check finished.

Number of nodes: 17329610

Number of faces: 44896590

Number of volumes: 13899302

Number of tetrahedra: 61

Number of hexahedra: 11168513

Number of prisms: 457991

Number of pyramids: 25

Number of polyhedra: 2257761

Mesh quality check failed. The mesh is not OK.

Mesh import started.

Mesh bounding box diagonal length [m]: 29.632

Run finished.

Meshing log:

etected 64 illegal faces (concave, zero area or negative cell pyramid volume)

Extruding 2020584 out of 2150385 faces (93.9638250825%). Removed extrusion at 15 faces.

Added 5729913 out of 6451155 cells (88.8199554963%).

Edge intersection testing:

Number of edges : 44837883

Number of edges to retest : 0

Number of intersected edges : 7990584

patch faces layers overall thickness

[m] [%]

## boundingBox5 30168 2.96 0.0232 92.9

solid_0_Body 186135 2.67 0.00333 80.8

solid_0_driver 29533 2.84 0.0031 86.2

solid_0_fsusp 45109 1.8 0.00127 54.2

solid_0_fupright 39093 2.72 0.00142 83.7

solid_0_FWflaplower 110247 2.8 0.00163 89.4

solid_0_FWflapupper 67463 2.83 0.00149 90.2

solid_0_FWheel 200711 2.58 0.00225 79.4

solid_0_FWheelspacer 5231 2.6 0.000875 74.7

solid_0_FWinnerplate 50338 2.26 0.00136 64.1

solid_0_FWmain 284780 2.93 0.00199 95.7

solid_0_FWmidplate 43710 2.41 0.00142 67.7

solid_0_FWmounting 26563 2.58 0.00145 71.3

solid_0_FWsideplate 106196 2.46 0.00137 67.2

solid_0_Gurneyflap 15935 2.98 0.00112 93

solid_0_Neck 59901 2.75 0.000958 77

solid_0_radshrout 34067 2.28 0.00167 64.5

solid_0_rearsuspbarreengine 199943 2.3 0.002 69.9

solid_0_Rupright 55263 2.75 0.00154 85.7

solid_0_RWheel 211302 2.6 0.00216 80.6

solid_0_RWflapupper 54060 2.95 0.00167 96.9

solid_0_RWsideplate 104232 2.87 0.00253 86.9

solid_0_RWmain 136873 2.91 0.00209 96

solid_0_RWheelspacer 5062 2.52 0.000835 71.4

solid_0_RWflaplower 48470 2.83 0.00163 92

Converting baffles back into zoned faces …

Edge intersection testing:

Number of edges : 44761114

Number of edges to retest : 76769

Number of intersected edges : 7913792

Converted baffles in = 710.66 s

Doing final balancing

Layer mesh : cells:13899302 faces:44761114 points:17174003

Cells per refinement level:

0 102164

1 3992

2 15976

3 291366

4 115022

5 657587

6 2454706

7 5688374

8 4570115

Writing mesh to time constant

Wrote mesh in = 30.41 s.

Layers added in = 770.87 s.

Checking final mesh …

Checking faces in error :

non-orthogonality > 75 degrees : 17

faces with face pyramid volume < 1e-13 : 2

faces with concavity > 80 degrees : 0

faces with skewness > 4 (internal) or 20 (boundary) : 0

faces with interpolation weights (0…1) < 0.01 : 2

faces with volume ratio of neighbour cells < 0.0075 : 0

faces with face twist < 0.005 : 12

faces on cells with determinant < 0.005 : 30

Finished meshing with 63 illegal faces (concave, zero area or negative cell pyramid volume)

Finished meshing in = 786.03 s.

End

Finalising parallel run

Solver log:

Time = 1496

smoothSolver: Solving for Ux, Initial residual = 5.67164280367e-07, Final residual = 3.78196975668e-08, No Iterations 2

smoothSolver: Solving for Uy, Initial residual = 1.08001799891e-05, Final residual = 6.71079734362e-08, No Iterations 4

smoothSolver: Solving for Uz, Initial residual = 2.12374709298e-06, Final residual = 4.65392207358e-08, No Iterations 3

GAMG: Solving for p, Initial residual = 0.000103034512166, Final residual = 6.53457120722e-07, No Iterations 5

time step continuity errors : sum local = 1.25350924225e-07, global = -2.56295681452e-11, cumulative = 4.42602031055e-06

smoothSolver: Solving for omega, Initial residual = 9.50647688777e-08, Final residual = 9.50647688777e-08, No Iterations 0

smoothSolver: Solving for k, Initial residual = 5.43877908366e-06, Final residual = 8.37109852932e-08, No Iterations 3

bounding k, min: -8.63000336714e-05 max: 606.541180354 average: 0.492576079293

ExecutionTime = 13561.89 s ClockTime = 13670 s

Time = 1497

smoothSolver: Solving for Ux, Initial residual = 5.63989809907e-07, Final residual = 3.73791757419e-08, No Iterations 2

smoothSolver: Solving for Uy, Initial residual = 1.07741723871e-05, Final residual = 6.71714399704e-08, No Iterations 4

smoothSolver: Solving for Uz, Initial residual = 2.11355999018e-06, Final residual = 4.59996552932e-08, No Iterations 3

GAMG: Solving for p, Initial residual = 0.000102402757546, Final residual = 6.54378340425e-07, No Iterations 5

time step continuity errors : sum local = 1.25615680489e-07, global = -1.68849973615e-11, cumulative = 4.42600342555e-06

smoothSolver: Solving for omega, Initial residual = 9.57927142107e-08, Final residual = 9.57927142107e-08, No Iterations 0

smoothSolver: Solving for k, Initial residual = 5.54192358562e-06, Final residual = 8.31928548994e-08, No Iterations 3

bounding k, min: -1.27876199274e-06 max: 579.097977064 average: 0.492565773186

ExecutionTime = 13570.27 s ClockTime = 13679 s

Time = 1498

smoothSolver: Solving for Ux, Initial residual = 5.60974898508e-07, Final residual = 3.6987733183e-08, No Iterations 2

smoothSolver: Solving for Uy, Initial residual = 1.07398106269e-05, Final residual = 6.70341284214e-08, No Iterations 4

smoothSolver: Solving for Uz, Initial residual = 2.10575098695e-06, Final residual = 4.55214551237e-08, No Iterations 3

GAMG: Solving for p, Initial residual = 0.000101915154281, Final residual = 6.63102939383e-07, No Iterations 5

time step continuity errors : sum local = 1.27287455967e-07, global = -1.91526074276e-11, cumulative = 4.42598427294e-06

smoothSolver: Solving for omega, Initial residual = 9.74527457422e-08, Final residual = 9.74527457422e-08, No Iterations 0

smoothSolver: Solving for k, Initial residual = 5.62868811717e-06, Final residual = 8.23727548016e-08, No Iterations 3

bounding k, min: -1.21660191662e-09 max: 543.572255049 average: 0.492553844143

ExecutionTime = 13578.59 s ClockTime = 13687 s

Time = 1499

smoothSolver: Solving for Ux, Initial residual = 5.58459661127e-07, Final residual = 3.66647155032e-08, No Iterations 2

smoothSolver: Solving for Uy, Initial residual = 1.07023872699e-05, Final residual = 6.68199526835e-08, No Iterations 4

smoothSolver: Solving for Uz, Initial residual = 2.09831350274e-06, Final residual = 4.52356394259e-08, No Iterations 3

GAMG: Solving for p, Initial residual = 0.000101309647771, Final residual = 6.75010146034e-07, No Iterations 5

time step continuity errors : sum local = 1.29569907068e-07, global = -1.15065829809e-11, cumulative = 4.42597276636e-06

smoothSolver: Solving for omega, Initial residual = 9.87948090876e-08, Final residual = 9.87948090876e-08, No Iterations 0

smoothSolver: Solving for k, Initial residual = 5.65547600029e-06, Final residual = 8.14833660773e-08, No Iterations 3

bounding k, min: -4.67271715826e-10 max: 505.129320972 average: 0.492540893633

ExecutionTime = 13587.01 s ClockTime = 13696 s

Time = 1500

smoothSolver: Solving for Ux, Initial residual = 5.56315928233e-07, Final residual = 3.64339323244e-08, No Iterations 2

smoothSolver: Solving for Uy, Initial residual = 1.06820102417e-05, Final residual = 6.6550935528e-08, No Iterations 4

smoothSolver: Solving for Uz, Initial residual = 2.09153361617e-06, Final residual = 4.51266546477e-08, No Iterations 3

GAMG: Solving for p, Initial residual = 0.000100819720241, Final residual = 6.76701422111e-07, No Iterations 5

time step continuity errors : sum local = 1.29891130914e-07, global = -5.29807248278e-13, cumulative = 4.42597223655e-06

smoothSolver: Solving for omega, Initial residual = 9.96790877793e-08, Final residual = 9.96790877793e-08, No Iterations 0

smoothSolver: Solving for k, Initial residual = 5.63053897064e-06, Final residual = 8.06414760131e-08, No Iterations 3

bounding k, min: -3.6159493063e-10 max: 468.38857153 average: 0.492527695947

ExecutionTime = 13606.2 s ClockTime = 13715 s

forces forces10 output:

sum of forces:

pressure : (16.83731687 -5.23650099772 -75.3859054792)

viscous : (0.643219139437 0.0409787985492 0.167810874721)

porous : (0 0 0)

sum of moments:

pressure : (-28.0536125765 -168.084778744 2.82252018976)

viscous : (0.0681925382546 0.428152288158 -0.372492258535)

porous : (0 0 0)

forces forces11 output:

sum of forces:

pressure : (26.7604585479 0.877284480112 -62.4629099665)

viscous : (0.561191748415 0.0220997454732 0.220243095105)

porous : (0 0 0)

sum of moments:

pressure : (-18.7864893153 34.6150349911 -8.4250955852)

viscous : (0.0532606853814 0.422300106025 -0.174417883282)

porous : (0 0 0)

forces forces12 output:

sum of forces:

pressure : (2.48190247263 0.583362761648 3.08619020252)

viscous : (0.145603176865 0.0156163476737 0.0611035885139)

porous : (0 0 0)

sum of moments:

pressure : (1.73063292932 5.30288338389 -2.39252171876)

viscous : (0.0308946711982 0.233308147405 -0.111872163528)

porous : (0 0 0)

forces forces13 output:

sum of forces:

pressure : (6.80108602039 -0.662133548905 3.50414365618)

viscous : (0.1393069617 -0.0286293709297 0.0712600245947)

porous : (0 0 0)

sum of moments:

pressure : (2.27434834799 1.5045137531 -3.83022094395)

viscous : (0.0483563124545 0.138261036992 -0.0820474980043)

porous : (0 0 0)

forces forces14 output:

sum of forces:

pressure : (0.68286234119 0.590216617059 0.14532491875)

viscous : (0.0473651128771 -0.00380437275155 0.00409362349078)

porous : (0 0 0)

sum of moments:

pressure : (-0.401963344907 0.452944872807 -0.166266258988)

viscous : (0.00336598394699 0.0332581370618 -0.00830937795046)

porous : (0 0 0)

forces forces15 output:

sum of forces:

pressure : (0.17494046503 0.241109742975 -0.118456331447)

viscous : (0.0162715592895 -0.000367317834061 0.00156070764689)

porous : (0 0 0)

sum of moments:

pressure : (-0.0745306566912 -0.233322093353 -0.613484042624)

viscous : (0.000499716762315 0.00654000854068 -0.00207594728564)

porous : (0 0 0)

forces forces16 output:

sum of forces:

pressure : (10.0785607108 -20.8925948093 -3.8587874758)

viscous : (0.571802334846 0.079262500095 0.00596844098667)

porous : (0 0 0)

sum of moments:

pressure : (5.18954585476 -2.85170041248 32.8431262735)

viscous : (-0.0290464134697 0.164490121412 -0.199721803909)

porous : (0 0 0)

forces forces17 output:

sum of forces:

pressure : (77.3097121915 -23.0312438011 -132.815208273)

viscous : (2.372171628 0.141237729494 0.570953725386)

porous : (0 0 0)

sum of moments:

pressure : (-37.6788893154 -121.140791531 16.934128302)

viscous : (0.169748105622 1.5438244479 -1.03775407159)

porous : (0 0 0)

End

Finalising parallel run

I can give you all details of our setup, just tell me what you need to know.

Thank you very much

H Koeckemann