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#1 |
New Member
Alessio Secchiaroli
Join Date: Dec 2023
Posts: 4
Rep Power: 2 ![]() |
Hello all
I'm learning how to use SU2, and I decided to experiment a bit. I'm trying to simulate a question received during the lecture of internal flow (i'll attach a screenshot of the question). My strategy was to start with the 2D model and later go for the 3D one. The mesh I create seems to work, as I tried a simple case with uniform velocity. I based my velocity profile on the example Inc_Laminar_Step so I'm quite sure it's ok. Nonetheless when I try to input the velocity as external file it gives me the following error: Reading inlet profile from file: velocity_ref.dat No Inlet Interpolation being used WARNING: Did not find a match between the points in the inlet file and point 123 at location: [-4.000000e+00, 3.000000e+00] Distance to closest point: 4.000312e+00 Current tolerance: 1.000000e-06 You can increase the tolerance for point matching by changing the value of the option INLET_MATCHING_TOLERANCE in your *.cfg file. Error in "void CSolver::LoadInletProfile(CGeometry**, CSolver***, CConfig*, int, short unsigned int, short unsigned int) const": ------------------------------------------------------------------------- Prescribed inlet data does not match markers within tolerance. ------------------------------ Error Exit ------------------------------- -------------------------------------------------------------------------- MPI_ABORT was invoked on rank 2 in communicator MPI_COMM_WORLD with errorcode 1. NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes. You may or may not see output from other processes, depending on exactly when Open MPI kills them. -------------------------------------------------------------------------- [Alessio:14927] 3 more processes have sent help message help-mpi-api.txt / mpi-abort [Alessio:14927] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error message I'm attaching the questions (I'm still stuck with the first anyway) and the configuration file. If needed I can upload the mesh as well. Thanks for any help |
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#2 |
Senior Member
bigfoot
Join Date: Dec 2011
Location: Netherlands
Posts: 596
Rep Power: 17 ![]() |
How did you generate the inlet file? If you do not have one, SU2 will generate a default file for you filled with the values from the uniform boundary conditions, and this file should work out of the box. Does this work for you?
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#3 | |
New Member
Alessio Secchiaroli
Join Date: Dec 2023
Posts: 4
Rep Power: 2 ![]() |
Quote:
I generated the inlet file as velocity.dat in an ASCII format following the example from Inc_Laminar_Step. Even though some points are actually slightly different (e.g. point 573 x=-4, y=2.950000000000586 in Mesh File, while in Input file x=-4, y=2.9500) the point specified by the error (123) is exactly x=-4 y=3 so i don't know what the problem is. I don't think I should refine the mesh as this one is already a refined version of my original and the problem is the same. The file that it generates has only 31 rows (as before I refined the mesh) but i will try and let you know Thank you for your apprehension EDIT: For some reason, I don't get the example file anymore, but at the end I realized there was an error in the input file indeed, nonetheless, even after correcting it, I was getting the same error but "WARNING: Did not find a match between the points in the inlet file and point 123 at location: [-4.000000e+00, 3.000000e+00] Distance to closest point: 5.00000e-02" So I changed the Inlet tolerance to 5e-2 which is definitely not ideal, as the simulation took a lot of time, but after 10021 iterations it converged ![]() NEXT STEP, I want to make the 3D example of question, let's see how it goes :/ Last edited by Secchialessio; December 20, 2023 at 05:23. |
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#4 |
Senior Member
bigfoot
Join Date: Dec 2011
Location: Netherlands
Posts: 596
Rep Power: 17 ![]() |
Hi, Can you share the mesh and inlet profile file? I can have a look then. Maybe it's a problem with the comparison and the sign of the coordinates.
Preferably a small mesh, since some people share 300Mb meshes and I cannot even load it without going to an HPC :-) |
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#5 |
New Member
Alessio Secchiaroli
Join Date: Dec 2023
Posts: 4
Rep Power: 2 ![]() |
Hi thanks a lot for your effort.
I posted the mesh with the 0.05 error, and the semi-structured mesh, which has even an higher tolerance.... The result from the unstructured mesh is also incorrect. https://drive.google.com/drive/folde...B6?usp=sharing |
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#6 |
Senior Member
bigfoot
Join Date: Dec 2011
Location: Netherlands
Posts: 596
Rep Power: 17 ![]() |
Hi,
This works fine for me. Are you using a very old version of SU2? The only thing I do is run Code:
SU2_CFD config_template_v2.cfg Maybe you made an error when you edited the example_velocity.dat file? You mentioned 31 rows but my generated example_velocity.dat has 61 rows |
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Tags |
invscid euler, specified inlet profile |
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