infinite MeshVelocities
Posted: 24 Feb 2014, 12:45
Hi all,
I have a problem with Mesh Velocities in the following setup:
a) I do a surface relaxation run (mainly Navier-Stokes, MeshUpdate, FreeSurfaceSolver - I am not using the StructuredMeshMapper since this is an old project which was started earlier and I didn't wanted to switch in the middle),
b) I restart from this, reset the Mesh Velocities to zero at the beginning, execute MeshUpdate Solver and calculate a Temperature Steady state,
c) I restart from b) and want to run the Temperature Solver as a transient simulation (only temperature, so no changes in velocities or geometry) after executing MeshUpdate.
In c) I run the MeshUpdate Solver as very first Solver "Before Simulation" and obtain infinite Mesh Velocities (in x, y and z). I tried to put them zero in the Initial Conditions and even as a Body Force, I tried with and without "Restart Before Initial Conditions=True". Whatever I do, MeshUpdate Solver leads to infinite MeshVelocity values and then my Temperature Solver crashes because of this. If I skip the MeshUpdate, the temperature field is fine.
Also all variables are correctly read during the restart and the MeshVelocities are 0 at the end of simulation b).
Does anyone have an idea why I get these infinite values? And what should they be? Zero as in simulation b) or some real value?
Thanks a lot,
Martina
I have a problem with Mesh Velocities in the following setup:
a) I do a surface relaxation run (mainly Navier-Stokes, MeshUpdate, FreeSurfaceSolver - I am not using the StructuredMeshMapper since this is an old project which was started earlier and I didn't wanted to switch in the middle),
b) I restart from this, reset the Mesh Velocities to zero at the beginning, execute MeshUpdate Solver and calculate a Temperature Steady state,
c) I restart from b) and want to run the Temperature Solver as a transient simulation (only temperature, so no changes in velocities or geometry) after executing MeshUpdate.
In c) I run the MeshUpdate Solver as very first Solver "Before Simulation" and obtain infinite Mesh Velocities (in x, y and z). I tried to put them zero in the Initial Conditions and even as a Body Force, I tried with and without "Restart Before Initial Conditions=True". Whatever I do, MeshUpdate Solver leads to infinite MeshVelocity values and then my Temperature Solver crashes because of this. If I skip the MeshUpdate, the temperature field is fine.
Also all variables are correctly read during the restart and the MeshVelocities are 0 at the end of simulation b).
Does anyone have an idea why I get these infinite values? And what should they be? Zero as in simulation b) or some real value?
Thanks a lot,
Martina