code_saturne User's Forum

Hello all, I was wondering which are the values corresponding to "CS_PHYSICAL_MODEL_FLAG". There ares tests in the code "CS_PHYSICAL_MODEL_FLAG<=0" or "CS_PHYSICAL_MODEL_FLAG>=2" but I can't find in the documentation or in the source code a comment section to explain th...

Hello all, I was wondering about boundary conditions and their influence on CPU time. In CS (7.0.0 for my version): Is it better to have 10 BC with a wall condition or one unique BC with all the 10 faces, always with a wall condition ? I mean, with the hypothesis the 10 faces are not adjacent/contin...

Hello I'm using CS6.0.0 and I achieved simulations with the parameter idilat=2 in cs_user_parameters.f90 . I would like to use this simulation as a restart, this time with the parameter idilat=3 (low-mach algorithm) with LES and exactly the same input file (xml). But the job fails at the first itera...

Hello Yvan, I found that the density outputted in .csv files is the rho used in the combustion module but its limits of variation corresponds to values obtained with pther=p0 with the state law, with pther the thermodynamic pressure, for my fuel and my oxydant. But I wonder why pther is defined unif...

Hello all, I'm using version 6.0.0 of CS and I have an error with the initialisation of a scalar in my field. I would like to transport Yi (mass fractions) and I have 11 species . My 11th scalar, yN2 should be initialised to 0 in the all domain, like others Yi scalars, but I found that the finial va...

Hello, I'm working on CS 6.0.0 ans I would like to add options/flags to mpicc command just like -g or -O3 (I know they're already there, it's just an example). My goal is to do something like : mpicc test.c -ltensorflow ... Is there a way to add it in a 'clean' way ? I tried to modify cflags_default...

Hello all I'm using code_saturne 6.0 and I need, for an extra calculation, to get the previous values of the temperature field, itemp. I've seen that the option of keeping the previous time step is disabled for temperature and I wonder how to activate it. I've tried to use "call field_set_n_pre...

Hello All, I was wondering about my RANS simulation with fast chemistry combustion module. Indeed, the output of density in the paraview render is clipped between 0.73 and 1.3. Theses values are not the ones I was expecting, I should have 0.88 and 4.5. I can get these values (or approximate) if I cr...

Hello, Thank you for your answer. I'm sorry but the file src/turb/cs_les_balance.c doesn't exist on my version (CS 6.0.0), so neither the laplacian function. I used the grep tip and I got the file cs_divergence.c/h too but the use of theses functions didn't fit my needs (if I trust Doxygen's documen...

Hello, I could like to compute scalar Laplacian, so a divergence of a gradient of a scalar field (div(grad(X))). I found a way to compute the gradient with field_gradient_scalar subroutine. But I can't found the way to compute a divergence or directly a laplacian. Is there someone who can give me ti...