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rhoSimpleFoam time step continuity errors

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Old   September 3, 2018, 11:19
Default rhoSimpleFoam time step continuity errors
  #1
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Deep
Join Date: Oct 2017
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deepbandivadekar is on a distinguished road
Hello,


I'm trying to solve a 2 streams mixing problem for a particular geometry. SO I have 2 inlets and one outlet and the mesh is completely structured for the rectangular geometry. I am getting time step continuity errors as shown below.


Code:
Create time

Create mesh for time = 0


SIMPLE: convergence criteria
    field p     tolerance 0.01
    field U     tolerance 0.0001
    field e     tolerance 0.001
    field "(k|epsilon|omega)"     tolerance 0.001

Reading thermophysical properties

Selecting thermodynamics package 
{
    type            hePsiThermo;
    mixture         pureMixture;
    transport       sutherland;
    thermo          hConst;
    equationOfState perfectGas;
    specie          specie;
    energy          sensibleInternalEnergy;
}

Reading field U

Reading/calculating face flux field phi

pressureControl
    pMax 165000
    pMin 40494

Creating turbulence model

Selecting turbulence model type laminar
Selecting laminar stress model Stokes
No MRF models present

No finite volume options present


Starting time loop

Time = 1

smoothSolver:  Solving for Ux, Initial residual = 1, Final residual = 0.0628401, No Iterations 2
smoothSolver:  Solving for Uy, Initial residual = 1, Final residual = 0.0397387, No Iterations 2
smoothSolver:  Solving for Uz, Initial residual = 0.999999, Final residual = 0.0163076, No Iterations 4
smoothSolver:  Solving for e, Initial residual = 1, Final residual = 0.0169938, No Iterations 1
GAMG:  Solving for p, Initial residual = 1, Final residual = 0.0314266, No Iterations 2
time step continuity errors : sum local = 4744.53, global = -3840.24, cumulative = -3840.24
ExecutionTime = 3.93 s  ClockTime = 4 s

Time = 2

smoothSolver:  Solving for Ux, Initial residual = 0.112653, Final residual = 0.00870741, No Iterations 4
smoothSolver:  Solving for Uy, Initial residual = 0.663654, Final residual = 0.011927, No Iterations 2
smoothSolver:  Solving for Uz, Initial residual = 0.169241, Final residual = 0.0155358, No Iterations 4
smoothSolver:  Solving for e, Initial residual = 0.807748, Final residual = 0.00160731, No Iterations 1
GAMG:  Solving for p, Initial residual = 0.978126, Final residual = 0.0452374, No Iterations 6
time step continuity errors : sum local = 1138.37, global = -218.941, cumulative = -4059.18
pressureControl: p max 275246
ExecutionTime = 7.25 s  ClockTime = 8 s

Time = 3

smoothSolver:  Solving for Ux, Initial residual = 0.152194, Final residual = 0.00842596, No Iterations 4
smoothSolver:  Solving for Uy, Initial residual = 0.5878, Final residual = 0.0443492, No Iterations 2
smoothSolver:  Solving for Uz, Initial residual = 0.0984365, Final residual = 0.0096684, No Iterations 4
smoothSolver:  Solving for e, Initial residual = 0.313931, Final residual = 0.00362717, No Iterations 1
[mae-hen-8163-db:22471] *** Process received signal ***
[mae-hen-8163-db:22471] Signal: Floating point exception (8)
[mae-hen-8163-db:22471] Signal code:  (-6)
[mae-hen-8163-db:22471] Failing at address: 0x3e9000057c7
[mae-hen-8163-db:22468] *** Process received signal ***
[mae-hen-8163-db:22468] Signal: Floating point exception (8)
[mae-hen-8163-db:22468] Signal code:  (-6)
[mae-hen-8163-db:22468] Failing at address: 0x3e9000057c4
[mae-hen-8163-db:22468] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7fea736c4f20]
[mae-hen-8163-db:22468] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7)[0x7fea736c4e97]
[mae-hen-8163-db:22468] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7fea736c4f20]
[mae-hen-8163-db:22468] [ 3] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThermoINS_9psiThermoENS_11pureMixtureINS_19sutherlandTransportINS_7species6thermoINS_12hConstThermoINS_10perfectGasINS_6specieEEEEENS_22sensibleInternalEnergyEEEEEEEE9calculateEv+0x305)[0x7fea7919b825]
[mae-hen-8163-db:22468] [ 4] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThermoINS_9psiThermoENS_11pureMixtureINS_19sutherlandTransportINS_7species6thermoINS_12hConstThermoINS_10perfectGasINS_6specieEEEEENS_22sensibleInternalEnergyEEEEEEEE7correctEv+0x2a)[0x7fea791ad87a]
[mae-hen-8163-db:22468] [ 5] rhoSimpleFoam(+0x2ae46)[0x55ae34731e46]
[mae-hen-8163-db:22468] [ 6] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x7fea736a7b97]
[mae-hen-8163-db:22468] [ 7] rhoSimpleFoam(+0x2f96a)[0x55ae3473696a]
[mae-hen-8163-db:22468] *** End of error message ***
[mae-hen-8163-db:22471] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7f76cdac4f20]
[mae-hen-8163-db:22471] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7)[0x7f76cdac4e97]
[mae-hen-8163-db:22471] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7f76cdac4f20]
[mae-hen-8163-db:22471] [ 3] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThermoINS_9psiThermoENS_11pureMixtureINS_19sutherlandTransportINS_7species6thermoINS_12hConstThermoINS_10perfectGasINS_6specieEEEEENS_22sensibleInternalEnergyEEEEEEEE9calculateEv+0x305)[0x7f76d359b825]
[mae-hen-8163-db:22471] [ 4] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThermoINS_9psiThermoENS_11pureMixtureINS_19sutherlandTransportINS_7species6thermoINS_12hConstThermoINS_10perfectGasINS_6specieEEEEENS_22sensibleInternalEnergyEEEEEEEE7correctEv+0x2a)[0x7f76d35ad87a]
[mae-hen-8163-db:22471] [ 5] rhoSimpleFoam(+0x2ae46)[0x5580f29cae46]
[mae-hen-8163-db:22471] [ 6] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x7f76cdaa7b97]
[mae-hen-8163-db:22471] [ 7] rhoSimpleFoam(+0x2f96a)[0x5580f29cf96a]
[mae-hen-8163-db:22471] *** End of error message ***
[mae-hen-8163-db:22470] *** Process received signal ***
[mae-hen-8163-db:22470] Signal: Floating point exception (8)
[mae-hen-8163-db:22470] Signal code:  (-6)
[mae-hen-8163-db:22470] Failing at address: 0x3e9000057c6
[mae-hen-8163-db:22470] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7fd153bc5f20]
[mae-hen-8163-db:22470] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7)[0x7fd153bc5e97]
[mae-hen-8163-db:22470] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7fd153bc5f20]
[mae-hen-8163-db:22470] [ 3] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThermoINS_9psiThermoENS_11pureMixtureINS_19sutherlandTransportINS_7species6thermoINS_12hConstThermoINS_10perfectGasINS_6specieEEEEENS_22sensibleInternalEnergyEEEEEEEE9calculateEv+0x305)[0x7fd15969c825]
[mae-hen-8163-db:22470] [ 4] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThermoINS_9psiThermoENS_11pureMixtureINS_19sutherlandTransportINS_7species6thermoINS_12hConstThermoINS_10perfectGasINS_6specieEEEEENS_22sensibleInternalEnergyEEEEEEEE7correctEv+0x2a)[0x7fd1596ae87a]
[mae-hen-8163-db:22470] [ 5] rhoSimpleFoam(+0x2ae46)[0x5569ee4d0e46]
[mae-hen-8163-db:22470] [ 6] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x7fd153ba8b97]
[mae-hen-8163-db:22470] [ 7] rhoSimpleFoam(+0x2f96a)[0x5569ee4d596a]
[mae-hen-8163-db:22470] *** End of error message ***
[mae-hen-8163-db:22469] *** Process received signal ***
[mae-hen-8163-db:22469] Signal: Floating point exception (8)
[mae-hen-8163-db:22469] Signal code:  (-6)
[mae-hen-8163-db:22469] Failing at address: 0x3e9000057c5
[mae-hen-8163-db:22469] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7f09068fcf20]
[mae-hen-8163-db:22469] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7)[0x7f09068fce97]
[mae-hen-8163-db:22469] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7f09068fcf20]
[mae-hen-8163-db:22469] [ 3] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThermoINS_9psiThermoENS_11pureMixtureINS_19sutherlandTransportINS_7species6thermoINS_12hConstThermoINS_10perfectGasINS_6specieEEEEENS_22sensibleInternalEnergyEEEEEEEE9calculateEv+0x305)[0x7f090c3d3825]
[mae-hen-8163-db:22469] [ 4] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThermoINS_9psiThermoENS_11pureMixtureINS_19sutherlandTransportINS_7species6thermoINS_12hConstThermoINS_10perfectGasINS_6specieEEEEENS_22sensibleInternalEnergyEEEEEEEE7correctEv+0x2a)[0x7f090c3e587a]
[mae-hen-8163-db:22469] [ 5] rhoSimpleFoam(+0x2ae46)[0x55a1f26bee46]
[mae-hen-8163-db:22469] [ 6] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x7f09068dfb97]
[mae-hen-8163-db:22469] [ 7] rhoSimpleFoam(+0x2f96a)[0x55a1f26c396a]
[mae-hen-8163-db:22469] *** End of error message ***
--------------------------------------------------------------------------
mpirun noticed that process rank 0 with PID 0 on node mae-hen-8163-db exited on signal 8 (Floating point exception).
--------------------------------------------------------------------------
I noted that the max pressure
Code:
time step continuity errors : sum local = 1138.37, global = -218.941, cumulative = -4059.18
pressureControl: p max 275246
probably was going beyond the set limits:
Code:
pressureControl
    pMax 165000
    pMin 40494
So I changed the criteria in fvSolutions and increased pMax coefficient to 3.5. But this did not change the situation.


New errors do not include the pMax warning line but solver fails nonetheless:
Code:
Create time

Create mesh for time = 0


SIMPLE: convergence criteria
    field p     tolerance 0.01
    field U     tolerance 0.0001
    field e     tolerance 0.001
    field "(k|epsilon|omega)"     tolerance 0.001

Reading thermophysical properties

Selecting thermodynamics package 
{
    type            hePsiThermo;
    mixture         pureMixture;
    transport       sutherland;
    thermo          hConst;
    equationOfState perfectGas;
    specie          specie;
    energy          sensibleInternalEnergy;
}

Reading field U

Reading/calculating face flux field phi

pressureControl
    pMax 385000
    pMin 40494

Creating turbulence model

Selecting turbulence model type laminar
Selecting laminar stress model Stokes
No MRF models present

No finite volume options present


Starting time loop

Time = 1

smoothSolver:  Solving for Ux, Initial residual = 1, Final residual = 0.0628742, No Iterations 2
smoothSolver:  Solving for Uy, Initial residual = 1, Final residual = 0.0397387, No Iterations 2
smoothSolver:  Solving for Uz, Initial residual = 0.999999, Final residual = 0.0163076, No Iterations 4
smoothSolver:  Solving for e, Initial residual = 1, Final residual = 0.0169938, No Iterations 1
GAMG:  Solving for p, Initial residual = 1, Final residual = 0.0314271, No Iterations 2
time step continuity errors : sum local = 4744.6, global = -3840.21, cumulative = -3840.21
ExecutionTime = 4.31 s  ClockTime = 4 s

Time = 2

smoothSolver:  Solving for Ux, Initial residual = 0.112656, Final residual = 0.00870786, No Iterations 4
smoothSolver:  Solving for Uy, Initial residual = 0.663654, Final residual = 0.0119271, No Iterations 2
smoothSolver:  Solving for Uz, Initial residual = 0.169241, Final residual = 0.015536, No Iterations 4
smoothSolver:  Solving for e, Initial residual = 0.807748, Final residual = 0.0016073, No Iterations 1
GAMG:  Solving for p, Initial residual = 0.978126, Final residual = 0.0452372, No Iterations 6
time step continuity errors : sum local = 1138.36, global = -218.941, cumulative = -4059.15
ExecutionTime = 7.28 s  ClockTime = 7 s

Time = 3

smoothSolver:  Solving for Ux, Initial residual = 0.280108, Final residual = 0.0257687, No Iterations 4
smoothSolver:  Solving for Uy, Initial residual = 0.805069, Final residual = 0.0705581, No Iterations 4
smoothSolver:  Solving for Uz, Initial residual = 0.473923, Final residual = 0.0284756, No Iterations 6
smoothSolver:  Solving for e, Initial residual = 0.528692, Final residual = 0.00947931, No Iterations 1
[mae-hen-8163-db:24641] *** Process received signal ***
[mae-hen-8163-db:24641] Signal: Floating point exception (8)
[mae-hen-8163-db:24641] Signal code:  (-6)
[mae-hen-8163-db:24641] Failing at address: 0x3e900006041
[mae-hen-8163-db:24641] [mae-hen-8163-db:24639] *** Process received signal ***
[mae-hen-8163-db:24639] Signal: Floating point exception (8)
[mae-hen-8163-db:24639] Signal code:  (-6)
[mae-hen-8163-db:24639] Failing at address: 0x3e90000603f
[mae-hen-8163-db:24639] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7f0e3850af20]
[mae-hen-8163-db:24639] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7)[0x7f0e3850ae97]
[mae-hen-8163-db:24639] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7f0e3850af20]
[mae-hen-8163-db:24639] [ 3] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThermoINS_9psiThermoENS_11pureMixtureINS_19sutherlandTransportINS_7species6thermoINS_12hConstThermoINS_10perfectGasINS_6specieEEEEENS_22sensibleInternalEnergyEEEEEEEE9calculateEv+0x305)[0x7f0e3dfe1825]
[ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7fa802966f20]
[mae-hen-8163-db:24641] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7)[0x7fa802966e97]
[mae-hen-8163-db:24641] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7fa802966f20]
[mae-hen-8163-db:24641] [ 3] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThermoINS_9psiThermoENS_11pureMixtureINS_19sutherlandTransportINS_7species6thermoINS_12hConstThermoINS_10perfectGasINS_6specieEEEEENS_22sensibleInternalEnergyEEEEEEEE9calculateEv+0x305)[0x7fa80843d825]
[mae-hen-8163-db:24641] [ 4] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThermoINS_9psiThermoENS_11pureMixtureINS_19sutherlandTransportINS_7species6thermoINS_12hConstThermoINS_10perfectGasINS_6specieEEEEENS_22sensibleInternalEnergyEEEEEEEE7correctEv+0x2a)[0x7fa80844f87a]
[mae-hen-8163-db:24641] [ 5] rhoSimpleFoam(+0x2ae46)[0x559c59b77e46]
[mae-hen-8163-db:24641] [ 6] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x7fa802949b97]
[mae-hen-8163-db:24641] [ 7] rhoSimpleFoam(+0x2f96a)[0x559c59b7c96a]
[mae-hen-8163-db:24641] *** End of error message ***
[mae-hen-8163-db:24639] [ 4] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThermoINS_9psiThermoENS_11pureMixtureINS_19sutherlandTransportINS_7species6thermoINS_12hConstThermoINS_10perfectGasINS_6specieEEEEENS_22sensibleInternalEnergyEEEEEEEE7correctEv+0x2a)[0x7f0e3dff387a]
[mae-hen-8163-db:24639] [ 5] rhoSimpleFoam(+0x2ae46)[0x558b08c76e46]
[mae-hen-8163-db:24639] [ 6] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x7f0e384edb97]
[mae-hen-8163-db:24639] [ 7] rhoSimpleFoam(+0x2f96a)[0x558b08c7b96a]
[mae-hen-8163-db:24639] *** End of error message ***
[mae-hen-8163-db:24638] *** Process received signal ***
[mae-hen-8163-db:24638] Signal: Floating point exception (8)
[mae-hen-8163-db:24638] Signal code:  (-6)
[mae-hen-8163-db:24638] Failing at address: 0x3e90000603e
[mae-hen-8163-db:24638] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7fafff9cbf20]
[mae-hen-8163-db:24638] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7)[0x7fafff9cbe97]
[mae-hen-8163-db:24638] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7fafff9cbf20]
[mae-hen-8163-db:24638] [ 3] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThermoINS_9psiThermoENS_11pureMixtureINS_19sutherlandTransportINS_7species6thermoINS_12hConstThermoINS_10perfectGasINS_6specieEEEEENS_22sensibleInternalEnergyEEEEEEEE9calculateEv+0x305)[0x7fb0054a2825]
[mae-hen-8163-db:24638] [ 4] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThermoINS_9psiThermoENS_11pureMixtureINS_19sutherlandTransportINS_7species6thermoINS_12hConstThermoINS_10perfectGasINS_6specieEEEEENS_22sensibleInternalEnergyEEEEEEEE7correctEv+0x2a)[0x7fb0054b487a]
[mae-hen-8163-db:24638] [ 5] rhoSimpleFoam([mae-hen-8163-db:24640] *** Process received signal ***
+0x2ae46)[0x55c13f784e46]
[mae-hen-8163-db:24638] [ 6] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x7fafff9aeb97]
[mae-hen-8163-db:24638] [ 7] rhoSimpleFoam(+0x2f96a)[0x55c13f78996a]
[mae-hen-8163-db:24638] *** End of error message ***
[mae-hen-8163-db:24640] Signal: Floating point exception (8)
[mae-hen-8163-db:24640] Signal code:  (-6)
[mae-hen-8163-db:24640] Failing at address: 0x3e900006040
[mae-hen-8163-db:24640] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7f2b6052bf20]
[mae-hen-8163-db:24640] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7)[0x7f2b6052be97]
[mae-hen-8163-db:24640] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7f2b6052bf20]
[mae-hen-8163-db:24640] [ 3] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThermoINS_9psiThermoENS_11pureMixtureINS_19sutherlandTransportINS_7species6thermoINS_12hConstThermoINS_10perfectGasINS_6specieEEEEENS_22sensibleInternalEnergyEEEEEEEE9calculateEv+0x305)[0x7f2b66002825]
[mae-hen-8163-db:24640] [ 4] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThermoINS_9psiThermoENS_11pureMixtureINS_19sutherlandTransportINS_7species6thermoINS_12hConstThermoINS_10perfectGasINS_6specieEEEEENS_22sensibleInternalEnergyEEEEEEEE7correctEv+0x2a)[0x7f2b6601487a]
[mae-hen-8163-db:24640] [ 5] rhoSimpleFoam(+0x2ae46)[0x5632368e1e46]
[mae-hen-8163-db:24640] [ 6] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x7f2b6050eb97]
[mae-hen-8163-db:24640] [ 7] rhoSimpleFoam(+0x2f96a)[0x5632368e696a]
[mae-hen-8163-db:24640] *** End of error message ***
--------------------------------------------------------------------------
mpirun noticed that process rank 1 with PID 0 on node mae-hen-8163-db exited on signal 8 (Floating point exception).
--------------------------------------------------------------------------
I have following boundary conditions for the fully laminar case:

U
Code:
inlet1: flowRateInletVelocity;
        volumetricFlowRate    constant 0.0011; 

inlet2: flowRateInletVelocity;
        volumetricFlowRate   constant 1e-5;


outlet: inletOutlet
p
Code:
inlet1: zeroGradient;


inlet2: fixedValue; 
       value            uniform 1.1e5;


outlet: fixedValue; 
       value            $internalField;
The pressure inlet for inlet 2 is a requirement and cannot be changed. fvSolution and fvSchemes are exactly as the tutorials for rhoSimpleFoam.


Does anyone spot a problem in here? Why am I getting the time step errors for a seemingly very simple problem?
deepbandivadekar is offline   Reply With Quote

Old   September 12, 2018, 16:29
Default
  #2
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Thomas M
Join Date: Aug 2018
Posts: 20
Rep Power: 7
tmik is on a distinguished road
Quote:
So I changed the criteria in fvSolutions and increased pMax coefficient to 3.5. But this did not change the situation.

Where and how did you change fvSolutions to include pMax? Could you provide the code you used for this?
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Old   September 13, 2018, 05:50
Default
  #3
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Deep
Join Date: Oct 2017
Posts: 180
Rep Power: 8
deepbandivadekar is on a distinguished road
Quote:
Originally Posted by tmik View Post
Where and how did you change fvSolutions to include pMax? Could you provide the code you used for this?

In the SIMPLE subdictionary of fvSolutions:
Code:
SIMPLE
{
    nNonOrthogonalCorrectors 0;
    pMinFactor      0.4;
    pMaxFactor      1.5;

    residualControl
    {
        p               1e-2;
        U               1e-4;
        e               1e-3;
        "(k|epsilon|omega)" 1e-3;
    }
}
However, be aware that this could be a superficial solution. Like in my case, the real reason for the issue could be somewhere in the setup. For me, it was bad boundary conditions. I managed to get past this error.
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