Syrthes (stand alone) execution time
Posted: Tue Jun 15, 2021 8:28 pm
Hello users of Syrthes.
I am running a simulation with conduction and radiation, simplified to be a 2D axisymmetric problem. It does not appear huge:
Nonetheless it is now on second day of running with the progress bar stuck at 30%. The last lines of the listing say:
so I guess it is calculating viewfactors as this is probably the most time consuming part. But several days ...? I have solved the problem at hand with a normal 2D approximation instead in a cross section perpendicular to what is my axis of rotation. I would really like to see what happens along the axis as well and I would avoid 3D model as this would be a heavy calculation.
I found this behaviour in Syrthes v4.3 but it is also present in the freshly built Syrthes v5.0 which I will give a few days to complete. But it does seem a long wait.
Are there anyone here with experience using the 2D axisymmetric modelling?
I am running a simulation with conduction and radiation, simplified to be a 2D axisymmetric problem. It does not appear huge:
Code: Select all
Conduction mesh:
|--------------------|------------------|
| Volumic mesh | Boundary mesh |
---------------------|--------------------|------------------|
| Dimension | 2 | 2 |
| Number of nodes | 1136 | unused |
| Number of elements | 1444 | 823 |
| Nb nodes per elt | 3 | 2 |
---------------------|--------------------|------------------|
Radiation mesh:
|--------------------|
| Volumic mesh |
---------------------|--------------------|
| Dimension | 2 |
| Number of nodes | 6878 |
| Number of elements | 6876 |
| Nb nodes per elt | 2 |
---------------------|--------------------|
Code: Select all
RADIATION INITIALIZATIONS
=========================
*** decode_clim_ray : Radiation face face type according the boundary conditions
-----------------------------------------------
| Boundary conditions | Nbre of faces |
-----------------------------|-----------------
| Coupled with the solid | 6876 |
| Imposed temperature | 0 |
| Prescribed flux | 0 |
| Windows | 0 |
| Sky dome | 0 |
-----------------------------------------------
*** init_scoupr : number of solid faces coupled to radiation = 705
*** Solid/radiation corresponding points calculation
*** init_scoupr : number of solid faces coupled to radiation = 705
I found this behaviour in Syrthes v4.3 but it is also present in the freshly built Syrthes v5.0 which I will give a few days to complete. But it does seem a long wait.
Are there anyone here with experience using the 2D axisymmetric modelling?