unable to run dynamic mesh(6dof) and wave UDF

shedo · July 1, 2022, 18:22

Hello experts
I am simulating a 1-degree cylinder's movement in the open channel and waves by dynamic mesh. when I simulate 6dof by layering and defining cylinder movement by UDF and waves by use of Fluent modules, everything works correctly, however, when I represent waves by UDF and I compile 2 UDF after 3 seconds of simulation I faced the below error, does anyone have any Idea?
do you think it is because of meshing? if yes why was no error encountered in the first case when I define wave by fluent module?
10 Stored Partitions:
----------------------------------------------------------------------
Collective Partition Statistics: Minimum Maximum Total
----------------------------------------------------------------------
Cell count 26112 27151 264620
Mean cell count deviation -1.3% 2.6%
Partition boundary cell count 187 545 3527
Partition boundary cell count ratio 0.7% 2.0% 1.3%

Face count 52578 54672 531564
Mean face count deviation -1.5% 2.4%
Partition boundary face count 222 685 2162
Partition boundary face count ratio 0.4% 1.3% 0.4%

Cell weights 2e+05 2e+05 2e+06
Mean cell weight deviation -1.3% 2.6%

Partition neighbor count 1 5
----------------------------------------------------------------------
Partition Method Metis
Stored Partition Count 10
Done.

Smoothing partition boundaries...done.
iter continuity x-velocity y-velocity k omega time/iter
47333 3.5815e+00 1.2024e-02 1.1617e-02 2.1446e-02 1.2525e-02 0:00:07 20

reversed flow in 361 faces on pressure-outlet 28.

reversed flow in 11 faces on pressure-outlet 29.
47334 4.3448e+00 1.9495e-02 1.8470e-02 2.1295e-02 1.3833e+03 0:00:09 19

reversed flow in 426 faces on pressure-outlet 28.

reversed flow in 157 faces on pressure-outlet 29.
47335 4.2686e+00 1.5537e-02 1.3918e-02 7.9508e-01 8.0000e-01 0:00:07 18

reversed flow in 503 faces on pressure-outlet 28.

reversed flow in 176 faces on pressure-outlet 29.
47336 3.6251e+00 1.3942e-02 1.2204e-02 6.9500e-01 8.0000e-01 0:00:09 17

reversed flow in 382 faces on pressure-outlet 28.

reversed flow in 83 faces on pressure-outlet 29.
47337 4.8898e+00 1.2807e-02 1.1359e-02 1.8049e-01 8.0000e-01 0:00:07 16

reversed flow in 490 faces on pressure-outlet 28.

reversed flow in 176 faces on pressure-outlet 29.
47338 5.5512e+00 6.5951e-02 5.9949e-02 2.5996e-02 7.9998e-01 0:00:08 15

reversed flow in 518 faces on pressure-outlet 28.

reversed flow in 176 faces on pressure-outlet 29.
47339 1.9716e+01 7.5496e-02 2.5451e-02 7.6065e-02 7.9310e-01 0:00:06 14

reversed flow in 505 faces on pressure-outlet 28.

reversed flow in 176 faces on pressure-outlet 29.
47340 2.7377e+01 1.1736e-01 1.4071e-01 1.1927e-01 4.5371e-01 0:00:04 13

reversed flow in 482 faces on pressure-outlet 28.

reversed flow in 176 faces on pressure-outlet 29.
47341 9.7167e+01 9.0101e-02 7.3436e-02 2.9706e-01 1.8241e-01 0:00:06 12

reversed flow in 353 faces on pressure-outlet 28.

reversed flow in 124 faces on pressure-outlet 29.
47342 1.5807e+02 1.5182e-01 1.0977e-01 2.5783e-01 1.4591e-01 0:00:04 11

reversed flow in 309 faces on pressure-outlet 28.

reversed flow in 44 faces on pressure-outlet 29.
47343 4.8970e+02 8.3838e-02 5.2738e-02 1.7708e-01 9.3042e-02 0:00:05 10

reversed flow in 478 faces on pressure-outlet 28.

reversed flow in 138 faces on pressure-outlet 29.
iter continuity x-velocity y-velocity k omega time/iter
47344 1.4571e+03 1.3789e-01 1.5193e-01 2.5083e-01 1.3040e-01 0:00:04 9

reversed flow in 492 faces on pressure-outlet 28.

reversed flow in 176 faces on pressure-outlet 29.
47345 6.2255e+03 1.2080e-01 4.7569e-02 1.8981e-01 8.5382e-02 0:00:04 8

reversed flow in 314 faces on pressure-outlet 28.

reversed flow in 7 faces on pressure-outlet 29.
47346 1.8626e+04 1.2240e-01 7.0865e-02 3.3478e-01 1.4134e-01 0:00:03 7

reversed flow in 355 faces on pressure-outlet 28.

reversed flow in 143 faces on pressure-outlet 29.
47347 2.7749e+04 9.4937e-02 1.0053e-01 4.4973e-01 2.4911e-01 0:00:03 6

reversed flow in 369 faces on pressure-outlet 28.

reversed flow in 141 faces on pressure-outlet 29.
47348 2.3511e+05 1.0677e-01 5.5202e-02 2.2602e+00 9.8885e+01 0:00:02 5

turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 67 cells

reversed flow in 467 faces on pressure-outlet 28.

reversed flow in 173 faces on pressure-outlet 29.
47349 6.0459e+05 1.1458e-01 6.4047e-02 9.2595e-01 9.6265e-01 0:00:02 4

turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 67 cells

reversed flow in 267 faces on pressure-outlet 28.

reversed flow in 55 faces on pressure-outlet 29.

turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 185 cells
47350 8.3070e+06 1.0223e-01 9.3633e-02 2.9127e+00 2.0855e+02 0:00:01 3

turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 185 cells

reversed flow in 376 faces on pressure-outlet 28.

reversed flow in 17 faces on pressure-outlet 29.

turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 587 cells
47351 5.9154e+06 1.1757e-01 1.1630e-01 8.1186e-01 9.3076e-01 0:00:01 2

turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 587 cells

reversed flow in 196 faces on pressure-outlet 28.

reversed flow in 17 faces on pressure-outlet 29.

turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 1336 cells
47352 1.2473e+09 1.0100e-01 7.2007e-02 2.8633e+03 2.2096e+04 0:00:00 1

turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 1336 cells

reversed flow in 395 faces on pressure-outlet 28.

reversed flow in 176 faces on pressure-outlet 29.

turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 2015 cells
47353 1.4295e+09 7.6389e-02 1.6358e-01 8.0001e-01 8.1740e-01 0:00:00 0
step flow-time water-surfac water-surfac water-surfac static-press static-press air-y-velovi air-volume-f y-mesh-on-cy y-velocity-o y-plus-on-cy
2426 3.3964e+00
Flow time = 3.396399999999883s, time step = 2426
47574 more time steps

Updating solution at time level N...
Global Courant Number [Explicit VOF Criteria] : 2623588260.19

Error at Node 0: Global courant number is greater than 250.00 The
velocity field is probably diverging. Please check the solution
and reduce the time-step if necessary.

Error at Node 1: Global courant number is greater than 250.00 The
velocity field is probably diverging. Please check the solution
and reduce the time-step if necessary.

Error at Node 2: Global courant number is greater than 250.00 The
velocity field is probably diverging. Please check the solution
and reduce the time-step if necessary.

Error at Node 3: Global courant number is greater than 250.00 The
velocity field is probably diverging. Please check the solution
and reduce the time-step if necessary.

Error at Node 4: Global courant number is greater than 250.00 The
velocity field is probably diverging. Please check the solution
and reduce the time-step if necessary.

Error at Node 5: Global courant number is greater than 250.00 The
velocity field is probably diverging. Please check the solution
and reduce the time-step if necessary.

Error at Node 6: Global courant number is greater than 250.00 The
velocity field is probably diverging. Please check the solution
and reduce the time-step if necessary.

Error at Node 7: Global courant number is greater than 250.00 The
velocity field is probably diverging. Please check the solution
and reduce the time-step if necessary.

Error at Node 8: Global courant number is greater than 250.00 The
velocity field is probably diverging. Please check the solution
and reduce the time-step if necessary.

Error at Node 9: Global courant number is greater than 250.00 The
velocity field is probably diverging. Please check the solution
and reduce the time-step if necessary.
ed 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiesating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiesating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiesating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiesating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiesating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF properties**************************************** ************************************
* hwloc has encountered what looks like an error from the operating system.
*
* Socket (cpuset 0xfff000ff) intersects with Socket (cpuset 0x000fffff) without inclusion!
* Error occurred in topology.c line 940
*
* Please report this error message to the hwloc user's mailing list,
* along with any relevant topology information from your platform.
************************************************** **************************
The fl process could not be started.

July 1, 2022, 18:22	unable to run dynamic mesh(6dof) and wave UDF	#1
shedo New Member sheida Join Date: Mar 2021 Posts: 11 Rep Power: 5	Hello experts I am simulating a 1-degree cylinder's movement in the open channel and waves by dynamic mesh. when I simulate 6dof by layering and defining cylinder movement by UDF and waves by use of Fluent modules, everything works correctly, however, when I represent waves by UDF and I compile 2 UDF after 3 seconds of simulation I faced the below error, does anyone have any Idea? do you think it is because of meshing? if yes why was no error encountered in the first case when I define wave by fluent module? 10 Stored Partitions: ---------------------------------------------------------------------- Collective Partition Statistics: Minimum Maximum Total ---------------------------------------------------------------------- Cell count 26112 27151 264620 Mean cell count deviation -1.3% 2.6% Partition boundary cell count 187 545 3527 Partition boundary cell count ratio 0.7% 2.0% 1.3% Face count 52578 54672 531564 Mean face count deviation -1.5% 2.4% Partition boundary face count 222 685 2162 Partition boundary face count ratio 0.4% 1.3% 0.4% Cell weights 2e+05 2e+05 2e+06 Mean cell weight deviation -1.3% 2.6% Partition neighbor count 1 5 ---------------------------------------------------------------------- Partition Method Metis Stored Partition Count 10 Done. Smoothing partition boundaries...done. iter continuity x-velocity y-velocity k omega time/iter 47333 3.5815e+00 1.2024e-02 1.1617e-02 2.1446e-02 1.2525e-02 0:00:07 20 reversed flow in 361 faces on pressure-outlet 28. reversed flow in 11 faces on pressure-outlet 29. 47334 4.3448e+00 1.9495e-02 1.8470e-02 2.1295e-02 1.3833e+03 0:00:09 19 reversed flow in 426 faces on pressure-outlet 28. reversed flow in 157 faces on pressure-outlet 29. 47335 4.2686e+00 1.5537e-02 1.3918e-02 7.9508e-01 8.0000e-01 0:00:07 18 reversed flow in 503 faces on pressure-outlet 28. reversed flow in 176 faces on pressure-outlet 29. 47336 3.6251e+00 1.3942e-02 1.2204e-02 6.9500e-01 8.0000e-01 0:00:09 17 reversed flow in 382 faces on pressure-outlet 28. reversed flow in 83 faces on pressure-outlet 29. 47337 4.8898e+00 1.2807e-02 1.1359e-02 1.8049e-01 8.0000e-01 0:00:07 16 reversed flow in 490 faces on pressure-outlet 28. reversed flow in 176 faces on pressure-outlet 29. 47338 5.5512e+00 6.5951e-02 5.9949e-02 2.5996e-02 7.9998e-01 0:00:08 15 reversed flow in 518 faces on pressure-outlet 28. reversed flow in 176 faces on pressure-outlet 29. 47339 1.9716e+01 7.5496e-02 2.5451e-02 7.6065e-02 7.9310e-01 0:00:06 14 reversed flow in 505 faces on pressure-outlet 28. reversed flow in 176 faces on pressure-outlet 29. 47340 2.7377e+01 1.1736e-01 1.4071e-01 1.1927e-01 4.5371e-01 0:00:04 13 reversed flow in 482 faces on pressure-outlet 28. reversed flow in 176 faces on pressure-outlet 29. 47341 9.7167e+01 9.0101e-02 7.3436e-02 2.9706e-01 1.8241e-01 0:00:06 12 reversed flow in 353 faces on pressure-outlet 28. reversed flow in 124 faces on pressure-outlet 29. 47342 1.5807e+02 1.5182e-01 1.0977e-01 2.5783e-01 1.4591e-01 0:00:04 11 reversed flow in 309 faces on pressure-outlet 28. reversed flow in 44 faces on pressure-outlet 29. 47343 4.8970e+02 8.3838e-02 5.2738e-02 1.7708e-01 9.3042e-02 0:00:05 10 reversed flow in 478 faces on pressure-outlet 28. reversed flow in 138 faces on pressure-outlet 29. iter continuity x-velocity y-velocity k omega time/iter 47344 1.4571e+03 1.3789e-01 1.5193e-01 2.5083e-01 1.3040e-01 0:00:04 9 reversed flow in 492 faces on pressure-outlet 28. reversed flow in 176 faces on pressure-outlet 29. 47345 6.2255e+03 1.2080e-01 4.7569e-02 1.8981e-01 8.5382e-02 0:00:04 8 reversed flow in 314 faces on pressure-outlet 28. reversed flow in 7 faces on pressure-outlet 29. 47346 1.8626e+04 1.2240e-01 7.0865e-02 3.3478e-01 1.4134e-01 0:00:03 7 reversed flow in 355 faces on pressure-outlet 28. reversed flow in 143 faces on pressure-outlet 29. 47347 2.7749e+04 9.4937e-02 1.0053e-01 4.4973e-01 2.4911e-01 0:00:03 6 reversed flow in 369 faces on pressure-outlet 28. reversed flow in 141 faces on pressure-outlet 29. 47348 2.3511e+05 1.0677e-01 5.5202e-02 2.2602e+00 9.8885e+01 0:00:02 5 turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 67 cells reversed flow in 467 faces on pressure-outlet 28. reversed flow in 173 faces on pressure-outlet 29. 47349 6.0459e+05 1.1458e-01 6.4047e-02 9.2595e-01 9.6265e-01 0:00:02 4 turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 67 cells reversed flow in 267 faces on pressure-outlet 28. reversed flow in 55 faces on pressure-outlet 29. turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 185 cells 47350 8.3070e+06 1.0223e-01 9.3633e-02 2.9127e+00 2.0855e+02 0:00:01 3 turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 185 cells reversed flow in 376 faces on pressure-outlet 28. reversed flow in 17 faces on pressure-outlet 29. turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 587 cells 47351 5.9154e+06 1.1757e-01 1.1630e-01 8.1186e-01 9.3076e-01 0:00:01 2 turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 587 cells reversed flow in 196 faces on pressure-outlet 28. reversed flow in 17 faces on pressure-outlet 29. turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 1336 cells 47352 1.2473e+09 1.0100e-01 7.2007e-02 2.8633e+03 2.2096e+04 0:00:00 1 turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 1336 cells reversed flow in 395 faces on pressure-outlet 28. reversed flow in 176 faces on pressure-outlet 29. turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 2015 cells 47353 1.4295e+09 7.6389e-02 1.6358e-01 8.0001e-01 8.1740e-01 0:00:00 0 step flow-time water-surfac water-surfac water-surfac static-press static-press air-y-velovi air-volume-f y-mesh-on-cy y-velocity-o y-plus-on-cy 2426 3.3964e+00 Flow time = 3.396399999999883s, time step = 2426 47574 more time steps Updating solution at time level N... Global Courant Number [Explicit VOF Criteria] : 2623588260.19 Error at Node 0: Global courant number is greater than 250.00 The velocity field is probably diverging. Please check the solution and reduce the time-step if necessary. Error at Node 1: Global courant number is greater than 250.00 The velocity field is probably diverging. Please check the solution and reduce the time-step if necessary. Error at Node 2: Global courant number is greater than 250.00 The velocity field is probably diverging. Please check the solution and reduce the time-step if necessary. Error at Node 3: Global courant number is greater than 250.00 The velocity field is probably diverging. Please check the solution and reduce the time-step if necessary. Error at Node 4: Global courant number is greater than 250.00 The velocity field is probably diverging. Please check the solution and reduce the time-step if necessary. Error at Node 5: Global courant number is greater than 250.00 The velocity field is probably diverging. Please check the solution and reduce the time-step if necessary. Error at Node 6: Global courant number is greater than 250.00 The velocity field is probably diverging. Please check the solution and reduce the time-step if necessary. Error at Node 7: Global courant number is greater than 250.00 The velocity field is probably diverging. Please check the solution and reduce the time-step if necessary. Error at Node 8: Global courant number is greater than 250.00 The velocity field is probably diverging. Please check the solution and reduce the time-step if necessary. Error at Node 9: Global courant number is greater than 250.00 The velocity field is probably diverging. Please check the solution and reduce the time-step if necessary. ed 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiesating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiesating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiesating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiesating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiesating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF propertiescylinder_floating: updated 6DOF properties************************************** ********************************** * hwloc has encountered what looks like an error from the operating system. * * Socket (cpuset 0xfff000ff) intersects with Socket (cpuset 0x000fffff) without inclusion! * Error occurred in topology.c line 940 * * Please report this error message to the hwloc user's mailing list, * along with any relevant topology information from your platform. ************************************************ ************************ The fl process could not be started.