Elmer Discussion Forum

Hey Guys
I want to use sst k-omega instead of k-epsilon
when i start to define b.c's values of sst k-omega the program is crashed and stop to work
why sst k-omega don't work in Elmer GUI however k-epsilon work /
Thanks in advance

Hmmm...
Is the crash reproducible?
Otherwise it will be difficult to find out what happens.
There is no software which is 100% stable...

Matthias

Same happens to me, whenever I try to input into the field in SST-k-Omega Boundary ElmerGUI crashes.

Kevin

I cannot do it right now, but I would check the solver xml. Maybe there is an error in the declaration of the corresponding field.

HTH,
Matthias

<BoundaryCondition>
<Parameter Widget="Label" > <Name> Dirichlet Conditions </Name> </Parameter>
<Parameter Widget="Edit">
<Name> Kinetic Energy </Name>
<Activate> /SST-K-Omega/BoundaryCondition/Kinetic Energy Condition </Activate>
</Parameter>

<Parameter Widget="Edit">
<Name> Kinetic Dissipation </Name>
<SifName> Kinetic Dissipation </SifName>
<Activate> /SST-K-Omega/BoundaryCondition/Kinetic Dissipation Condition </Activate>
</Parameter>

I removed the Activate line and the crash quit occurring.

OK, so the cause of the problem is found.
I assume that the Activate tags were intended to make the "Kinetic Energy Condition" and "Kinetic Dissipation Condition" appear. If there are such tags, then one could try to make them work. If not - well, those Conditions might not be used all that often, but in principle they should be available nevertheless...

Matthias

Thanks A lot
but can you send to me the modified xml file ?

When i removed Activate lines
Log file give the following error

SingleSolver: Attempting to call solver
SingleSolver: Solver Equation string is: sst k-omega
Loading user function library: [SSTKOmega]...[SSTKOmega_post]
SingleSolver: Attempting to call solver
SingleSolver: Solver Equation string is: navier-stokes
FlowSolve:
FlowSolve:
FlowSolve: -------------------------------------
FlowSolve: NAVIER-STOKES ITERATION 1
FlowSolve: -------------------------------------
FlowSolve:
FlowSolve: Starting Assembly...
ERROR:: Viscosity Model: The kinetic energy variable not defined?
FlowSolve: Assembly:

job aborted:
[ranks] message

[0] terminated

[1] process exited without calling finalize

[2-5] terminated

---- error analysis -----

[1] on DESKTOP-KE2HSUA
ElmerSolver_mpi.exe ended prematurely and may have crashed. exit code 0

---- error analysis -----

You probably have to manually add
Kinetic Energy
Kinetic Dissipation
to the sif file

Hi,

there were typos in the xml file. The name was sometimes mistyped as "SST-K-Omega" instead of "SST K-Omega".
The xml file in the attachment should work.

Matthias

Matthias EDIT: N.B.: Spamhaus blocking of my IP is very annoying.