[kandelabr]

Hello,

on my case, interFoam solver exits without any error messages or anything. This is the output of the last timestep:

Courant Number mean: 2.95852e-08 max: 0.00172045
Interface Courant Number mean: 0 max: 0
deltaT = 2.21368e-05
Time = 0.000126986

PIMPLE: iteration 1
smoothSolver:  Solving for alpha.water, Initial residual = 6.1499e-08, Final residual = 2.45134e-15, No Iterations 1
Phase-1 volume fraction = 0.00637858  Min(alpha.water) = -1.99748e-19  Max(alpha.water) = 1
MULES: Correcting alpha.water
MULES: Correcting alpha.water
Phase-1 volume fraction = 0.00637858  Min(alpha.water) = -5.20746e-13  Max(alpha.water) = 1
DICPCG:  Solving for p_rgh, Initial residual = 4.25359e-05, Final residual = 1.5637e-06, No Iterations 3
DICPCG:  Solving for p_rgh, Initial residual = 1.56367e-06, Final residual = 9.57009e-08, No Iterations 17
time step continuity errors : sum local = 1.72262e-12, global = 4.2087e-13, cumulative = 1.47821e-12
DICPCG:  Solving for p_rgh, Initial residual = 6.84093e-06, Final residual = 2.7269e-07, No Iterations 6
DICPCG:  Solving for p_rgh, Initial residual = 2.72694e-07, Final residual = 8.39183e-08, No Iterations 6
time step continuity errors : sum local = 1.51056e-12, global = 4.20483e-13, cumulative = 1.89869e-12
DICPCG:  Solving for p_rgh, Initial residual = 5.97061e-07, Final residual = 9.90518e-08, No Iterations 4
DICPCG:  Solving for p_rgh, Initial residual = 9.90518e-08, Final residual = 9.90518e-08, No Iterations 0
time step continuity errors : sum local = 1.78296e-12, global = 4.19661e-13, cumulative = 2.31835e-12
smoothSolver:  Solving for epsilon, Initial residual = 0.000153636, Final residual = 5.23234e-08, No Iterations 1
bounding epsilon, min: 0 max: 87.5263 average: 2.66337
smoothSolver:  Solving for k, Initial residual = 0.0177124, Final residual = 2.0353e-08, No Iterations 2
bounding k, min: 0 max: 0.100165 average: 0.0996646

This run is single-core, static mesh and this happens at the very beginning (Co number is set very low and then increases automatically with next timesteps). I ruled out domain decomposition and dynamic meshes and I am also quite confident the problem is not in boundary conditions because I would almost certainly recognize those (I created enough of them already ).

How do I deal with this (possibly, without recompiling and debugging)?

Thanks!

[sheaker]

Hello.

I think I had similar problem when openFoam wasn't permitted to write on hard drive.
Similar problem may occur when there is not enough free space on your drive but your simulation crashes at the very beginning so it shouldn't be a problem.
Have a nice day.
Sheaker

[kandelabr]

I found this similar topic where there was a problem with waveFoam:

interFoam stops without error

I've been running this case on Linux Subsystem for Windows and it's stopping. I'm now running exactly the same setup on CFDSupport's OF4Win and it seems to be running OK.

Although I might proclaim this as a system issue, I'm still not very sure... I've been running interFoam on the same system with a different case without any problems.

[kandelabr]

I've been studying this whole case - mesh, boundary conditions, solvers, schemes - and came to a definite conclusion that this must be a dynamicRefineFvMesh issue. The case runs on any system without dynamic refinement but fails in any case with refinement. Also the damBreak with refinement works on my computer.

What are the limits for dynamic refinement? I have the usual snappyHexMesh, checkMesh doesn't return any errors and I don't use layer addition.

Thanks!

[kandelabr]

Here's the whole case if anyone decides to run it.

https://damogranlabs.com/wp-content/...ogran-soup.zip

It works without refinement (as in https://damogranlabs.com/2018/09/damogran-soup/) but quits silently with it.

[S_teph_2000]

Hello,

September 2019 and I get the same problem with Windows linux subsystem
(Ubuntu) when I use the dynamic mesh. I suspect this is an issue related to the size of the initial mesh, but I'm not sure (presently running some test).
I am using an Hexa mesh made using cfmesh (~11M cells), and interfoam.
If anyone made some progress on this issue, it would be nice to get some help.

[S_teph_2000]

well, I've confirmed that the 2D dambreak example works in parallel with mesh refinement.....so I think we can rule out a installation/system cause for this problem. Also, with or without refinement, the mesh made with cfmesh stops interfoam without any error....

[S_teph_2000]

Hello,
I solved my problem by doing two things:
1) In the "boundary" file located in the polyMesh folder, the types for "inlet" and "outlet" boundaries were "wall" instead of "patch": I corrected this. This problem has already been mentioned on cfdOnline 2 years ago (can't remember where...). Unfortunately the problem persisted...
2)I then ran the utility "improveMeshQuality" and it worked!!!:11Millions cells mesh(cfMesh)+InterFoam+AMR+OpenFoam