[Kieyo]

Hi guys, I am newbie trying to simulate a fluidized bed reactor for my MS Thesis using ANSYS Fluent 19.2. My transient simulation was running smoothly (although not yet converging) last night and I saved the project before shutting down my laptop. Today, I tried to continue the calculation but got a floating point exception error. This is new to me since I have been doing this practice of saving a project and then continuing the next day, and there was no error before.

I tried reloading the Fluent and re-initializing my simulation but the error persists. Can somebody help me? This is the exact message on my console:


Welcome to ANSYS Fluent Release 19.2

Copyright 1987-2018 ANSYS, Inc. All Rights Reserved.
Unauthorized use, distribution or duplication is prohibited.
This product is subject to U.S. laws governing export and re-export.
For full Legal Notice, see documentation.

Build Time: Aug 8 2018 13:38:56 Build Id: 10236

Host spawning Node 0 on machine [redacted] (win64).
WARNING: No cached password or password provided.
use '-pass' or '-cache' to provide password
Host 0 -- ip [redacted] -- ranks 0 - 3

host | 0
======|======
0 : SHM

Prot - All Intra-node communication is: SHM


-------------------------------------------------------------------------------
ID Hostname Core O.S. PID Vendor
-------------------------------------------------------------------------------
n3 4/16 Windows-x64 10364 11th Gen Intel(R)
n2 3/16 Windows-x64 7544 11th Gen Intel(R)
n1 2/16 Windows-x64 16628 11th Gen Intel(R)
n0* 1/16 Windows-x64 21532 11th Gen Intel(R)
host Windows-x64 17272 11th Gen Intel(R)

MPI Option Selected: ibmmpi
Selected system interconnect: default
-------------------------------------------------------------------------------

Cleanup script file is C:\Users\User\ANSYS Fluent projects\cleanup-fluent-[redacted]-17272.bat

> Multicore SMT processors detected. Processor affinity set!
Reading ""| gunzip -c "C:\Users\User\ANSYS Fluent projects\Irfan_DeNOx_files\dp0\FFF\Fluent\FFF.1-1.cas.gz"""...
Buffering for file scan...



16060 quadrilateral cells, zone 4, binary.
4020 quadrilateral cells, zone 3, binary.
4020 cell child pointers, parent zone 3, child zone 4, binary.
16060 cell partition ids, zone 4, 4 partitions, binary.
4020 cell partition ids, zone 3, 4 partitions, binary.
31779 2D interior faces, zone 1, binary.
642 2D wall faces, zone 5, binary.
80 2D velocity-inlet faces, zone 6, binary.
20 2D pressure-outlet faces, zone 7, binary.
60 2D parent-face faces, zone 10, binary.
242 2D parent-face faces, zone 9, binary.
7919 2D parent-face faces, zone 8, binary.
60 face child pointers, parent zone 10, child zone 6, binary.
242 face child pointers, parent zone 9, child zone 5, binary.
7919 face child pointers, parent zone 8, child zone 1, binary.
16462 nodes, binary.
16462 node flags, binary.

Building...
mesh
distributing mesh
parts....,
faces....,
nodes....,
cells....,
bandwidth reduction using Reverse Cuthill-McKee: 2858/53 = 53.9245
materials,
interface,
domains,
mixture
phase-1
phase-2
interaction
zones,
fluid_domain (phase-1)
interior-fluid_domain (phase-1)
walls (phase-1)
inlet (phase-1)
outlet (phase-1)
fluid_domain (phase-2)
interior-fluid_domain (phase-2)
walls (phase-2)
inlet (phase-2)
outlet (phase-2)
outlet
inlet
walls
interior-fluid_domain
fluid_domain
parallel,
Done.

Preparing mesh for display...

Error: No journal response to dialog box message:'Surface groupings have changed. This has
resulted in surface list selection changes
for the following graphics objects.
contour-1
'
. Internally, cancelled the dialog.
Done.

Setting Post Processing and Surfaces information ... Done.
Reading ""| gunzip -c "C:\Users\User\ANSYS Fluent projects\Irfan_DeNOx_files\dp0\FFF\Fluent\FFF.1-2-00100.dat.gz"""...


Parallel variables...

turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 2175 cells
Done.

Integrating heterogeneous inter-phase reactions on zone ID 4

Updating solution at time level N...
done.

iter continuity u-phase-1 u-phase-2 v-phase-1 v-phase-2 energy-p1 energy-p2 k epsilon h2o-phase- cuo-phase- no-phase-1 nh3-phase- so2-phase- o2-phase-1 vf-phase-2 time/iter
2000 4.6635e-02 1.2149e-04 2.0765e-05 7.2782e-04 4.5479e-05 1.1485e-07 2.4187e-09 3.9928e-05 7.7569e-05 8.7044e-07 5.1246e-10 7.1071e-07 3.7244e-07 0.0000e+00 1.8654e-10 3.0024e-03 0:00:00 20

temperature limited to 5.000000e+03 in 2064 cells on zone 4
Stabilizing temperature to enhance linear solver robustness.


WARNING: Invalid cp (0.000000e+00 J/kgK) for water-vapor at temperature -nan(ind) K


turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 236 cells


WARNING: Invalid cp (0.000000e+00 J/kgK) for water-vapor at temperature -nan(ind) K



WARNING: Invalid cp (0.000000e+00 J/kgK) for water-vapor at temperature -nan(ind) K



WARNING: Invalid cp (0.000000e+00 J/kgK) for nitrogen-oxide at temperature -nan(ind) K

2001 6.3139e-02 1.1947e-04 7.1539e-05 7.0065e-04 1.6341e-04 nan nan 6.6853e-05 1.5731e-04 1.0492e-03 4.9458e-08 9.5897e-04 4.9002e-04 1.1695e-02 2.3888e-07 3.3847e-03 0:00:19 19
Stabilizing mp-x-momentum to enhance linear solver robustness.
Stabilizing mp-y-momentum to enhance linear solver robustness.
Stabilizing pressure correction to enhance linear solver robustness.

Divergence detected in AMG solver: pressure correction Stabilizing k to enhance linear solver robustness.

Divergence detected in AMG solver: k Stabilizing epsilon to enhance linear solver robustness.

Divergence detected in AMG solver: epsilon Stabilizing phase-1-species-0 to enhance linear solver robustness.

Divergence detected in AMG solver: phase-1-species-0 Stabilizing phase-1-species-1 to enhance linear solver robustness.

Divergence detected in AMG solver: phase-1-species-1 Stabilizing phase-1-species-2 to enhance linear solver robustness.

Divergence detected in AMG solver: phase-1-species-2 Stabilizing phase-1-species-3 to enhance linear solver robustness.

Divergence detected in AMG solver: phase-1-species-3 Stabilizing phase-1-species-4 to enhance linear solver robustness.

Divergence detected in AMG solver: phase-1-species-4 Stabilizing phase-2-species-0 to enhance linear solver robustness.

Divergence detected in AMG solver: phase-2-species-0 Stabilizing temperature to enhance linear solver robustness.
Stabilizing vof-1 to enhance linear solver robustness.

Divergence detected in AMG solver: vof-1

WARNING: Invalid cp (0.000000e+00 J/kgK) for fluegas-mixture at temperature nan K


Divergence detected in AMG solver: pressure correction
Divergence detected in AMG solver: k
Divergence detected in AMG solver: epsilon
Divergence detected in AMG solver: phase-1-species-0
Divergence detected in AMG solver: phase-1-species-1
Divergence detected in AMG solver: phase-1-species-2
Divergence detected in AMG solver: phase-1-species-3
Divergence detected in AMG solver: phase-1-species-4
Divergence detected in AMG solver: phase-2-species-0
Divergence detected in AMG solver: vof-1

WARNING: Invalid cp (0.000000e+00 J/kgK) for fluegas-mixture at temperature nan K


Divergence detected in AMG solver: pressure correction
Divergence detected in AMG solver: k
Divergence detected in AMG solver: epsilon
Divergence detected in AMG solver: phase-1-species-0
Divergence detected in AMG solver: phase-1-species-1
Divergence detected in AMG solver: phase-1-species-2
Divergence detected in AMG solver: phase-1-species-3
Divergence detected in AMG solver: phase-1-species-4
Divergence detected in AMG solver: phase-2-species-0
Divergence detected in AMG solver: vof-1

WARNING: Invalid cp (0.000000e+00 J/kgK) for fluegas-mixture at temperature -nan(ind) K


Divergence detected in AMG solver: pressure correction
Divergence detected in AMG solver: k
Divergence detected in AMG solver: epsilon
Divergence detected in AMG solver: phase-1-species-0
Divergence detected in AMG solver: phase-1-species-1
Divergence detected in AMG solver: phase-1-species-2
Divergence detected in AMG solver: phase-1-species-3
Divergence detected in AMG solver: phase-1-species-4
Divergence detected in AMG solver: phase-2-species-0
Divergence detected in AMG solver: vof-1

WARNING: Invalid cp (0.000000e+00 J/kgK) for fluegas-mixture at temperature -nan(ind) K


Error at host: floating point exception

Error at Node 0: floating point exception

Error at Node 1: floating point exception

Error at Node 2: floating point exception

Error at Node 3: floating point exception

===============Message from the Cortex Process================================

Compute processes interrupted. Processing can be resumed.

================================================== ============================

Error: floating point exception
Error Object: #f
Registering AnimationFiles, ("C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1.cxa" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0000.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0001.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0002.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0003.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0004.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0005.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0006.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0007.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0008.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0009.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0010.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0011.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0012.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0013.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0014.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0015.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0016.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0017.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0018.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0019.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0020.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0021.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0022.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0023.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0024.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0025.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0026.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0027.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0028.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0029.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0030.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0031.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0032.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0033.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0034.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0035.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0036.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0037.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0038.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0039.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0040.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0041.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0042.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0043.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0044.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0045.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0046.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0047.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0048.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0049.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0050.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0051.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0052.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0053.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0054.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0055.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0056.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0057.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0058.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0059.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0060.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0061.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0062.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0063.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0064.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0065.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0066.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0067.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0068.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0069.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0070.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0071.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0072.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0073.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0074.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0075.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0076.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0077.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0078.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0079.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0080.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0081.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0082.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0083.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0084.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0085.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0086.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0087.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0088.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0089.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0090.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0091.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0092.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0093.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0094.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0095.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0096.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0097.hsf" "C:/Users/User/ANSYS Fluent projects/Irfan_DeNOx_files/dp0/FFF/Fluent\animation-1_0098.hsf")
Registering ReportDefFiles, ()

Error: WorkBench Error: Could not handle event: SolutionStatusUpdate
Error Object: #f

Calculation complete.