code_saturne User's Forum

Hello Yvan, Excuse me for giving you so much trouble, thanks, two more questions, what is the unit for Exchange coefficient which is in the boundary conditions in the GUI? And what's the meaning of 'Prescribed flux' in the Thermal Type of Boundary conditions? If the flux is equal to 0, does it mean ...

Hello Yvan,

Sorry, I do not quite understand what 'mesh numbering' means. Are they 'Symmetry 1' and 'Symmetry 2' which is periodic BC?

Thank you very much

Best Regards

XING Jian

Hello Yvan, Thank you very much, I made it through your help, just a little question, like Symmetry_1 is periodic with Symmetry_2, the distance between them is 0.09m and they are parallel, (The coordinate of the x-axis of Symmetry_1 is 0.045 and Symmetry_2 is -0.045), so they are type of Periodicity...

Hello Luciano, Thank you Luciano. So is N_iter number of iterations used to solve the linear system? Norm. residual is normed residual after solving the linear system (should be lower than Soler Precision=1.e-8 which is the criterion for stopping the iterations)? And does Derive mean |u(n+1)-u(n)|/|...

Hello Yvan, Thank you very much Yvan, you are so nice, because that I thought 'Relaxation of pressure increase' is incremental loops, and 'Solver precision' is Monitors Residuals. So, you mean that I do not need to compare the value of Derive and the value of Solver precision, as long as Derive is s...

Hello Luciano, Thank you, you are so nice, but I am using Windows... So how can I do that? Because in Fluent, I can directly observe the value of the residual is stable, to determine whether the results converge. Is the result converging in Code Saturne? More specifically, is it to compare the value...

Hello Luciano, Thank you for your response, in the ‘Monitoring points output’ file format should be changed to ‘.csv’ so that the files may be read in ‘ParaView’ of Salome. But how many points do I need to choose? So that the results can be representative. And my listing is a txt file, how can I run...

Hello, What type of mesh are you using ? Could you post the log file types listed in the forum recommendations section ? Derive is the main convergence indicator, but there is no automatic convergence test, and plotting probes is a recommended way to check the convergence behavior. Best regards, Yv...

Hello Yvan, So you mean the plane is an angle used for curved surfaces, if Symmetry_1 is periodic with Symmetry_2(I have already defined these two faces in the same boundary condition.)，is it the angle between the two faces? And in my condition, these two faces are parallel (We can not set the angle...

Hello Yvan, I still have a question about Periodic Boundaries, I know 'Selection criteria' is name of the Boundaries Condition, and 'Plane' is ID of the face, but I don't know the meaning of 'Fraction' 'Verbosity' and 'Visualization'. I want to do make a Periodic Boundary, by using two symmetrical f...