code_saturne User's Forum

Hi all, i'm facing a similar problem with a .unv mesh made only by tet elements. SYRTHES file opened : Mesh_2.syr Ideas universal file opened : Mesh_2.unv Ideas mesh file : wrong type of elements found (type=41) For what i googled 41 should be triangular elements, is there something wrong? my syrthe...

Hi all, it's been a long time for me since the last CS + Syrthes simulation, the tutorial i wrote is now totally obsolete (thanks to the great improvements in CS). This topic is of great interest for me, i would like to share some questions, both general and specific, i had: - CS 5.0 and syrthes (st...

Hi all, i'm just writing to thank you, Yvan, for your precious support. I'm starting to perform some dedicated CFD topology optimization simulations with CS. Now the code is quite stable (i'm still using 4.0) and i'm trying several configurations, the image attached is related to a very simple 2D fl...

I tryed again leaving only, as surface postprocessing: Yplus, Dimensionless Thermal flux, Boundary temperature, Thermal flux, Tplus . And the field boundary_forces doesn't exist anymore, so i suppore is related only to stress/force efforts not to thermal flux. field number= 19 field list = Velocity ...

Hi Yvan, from the file you suggested me : ! Additional fields 325 !------------------ 326 327 ! Fields used to save postprocessing data 328 329 itycat = FIELD_INTENSIVE + FIELD_PROPERTY 330 ityloc = 3 ! boundary faces 331 332 ! If postprocessing of boundary temperature or boundary layer Nusselt requ...

Hi Yvan, I'm using CS 4.0 builded on linux Ubuntu 16.04 and on Win7. I can't find addflf.f90, instead i have addfld.f90 that i suppose is the subroutine you wanted me to look. Yes i always use GUI to setup the postprocessing surface output. How can i call the f90 function to create such thermal_flux...

Hi all, i'm trying to import like a boundary field (i.e yplus) the boundary thermal flux (input_thermal_flux in paraview or thermal_flux in CS gui) using .c subroutines. However, as i checked, the field is not defined when user_postprocess is called and so i just can't import it. How can i read such...

Hi Yvan, Thank you, with conjugate gradient i could go a little further in the simulations (more restarts). For what i understood the problem is higly mesh related. I mean, i should have all the tetras in a very small dimension range. Usually netgen make a finer mesh at the borders and next cells gr...

Hi, Thanks to your kind help now the simulation is working very good. I'm able to see the mesh evolving following the rules i have defined. however i don't know why some errors appears at a certain point. algebraic multigrid [Pressure]: divergence after 2 cycles: initial residual: 5.8255e-005; curre...

Thank you Yvan, i was writing your solution while you posted. Yes i setted /* mark all cells as 0 */ for (i = 0; i < n_cells_ext ; i++) // otherwise mesh->n_cells, essential for parallel solving cell_marker[i] = 0; Now the simulation is running and i can see that some faces are not marked as "h...