Search found 98 matches

by Brian Angel
Mon Mar 09, 2015 9:48 am
Forum: code_saturne usage
Topic: Opening like boundary condition
Replies: 11
Views: 3253

Re: Opening like boundary condition

Hello Néstor,

Unfortunately I do not have any examples. Can you upload your case so that I can take a look?

Regards,

Brian Angel.
by Brian Angel
Fri Mar 06, 2015 10:40 am
Forum: code_saturne usage
Topic: Error during calculation
Replies: 13
Views: 4217

Re: Error during calculation

Hello, I've just looked through your listing file. I think the problem is now due to the mass flow at the various inlet / outlet boundaries in the flow domain. Just above the error message at the end of the listing file there is a message stating that for the 892 boundary faces of the Free outlet bo...
by Brian Angel
Fri Mar 06, 2015 9:35 am
Forum: code_saturne usage
Topic: Opening like boundary condition
Replies: 11
Views: 3253

Re: Opening like boundary condition

Hello,

In version 4.0 there is a boundary condition available (in the GUI) called Free Inlet/Outlet which should provide what you are looking for.

Regards,

Brian Angel.
by Brian Angel
Thu Mar 05, 2015 11:59 am
Forum: code_saturne usage
Topic: Error during calculation
Replies: 13
Views: 4217

Re: Error during calculation

Ok, good that it runs.

Regards,

Brian Angel.
by Brian Angel
Thu Mar 05, 2015 11:05 am
Forum: code_saturne usage
Topic: Error during calculation
Replies: 13
Views: 4217

Re: Error during calculation

Hello, Can you post the listing and error files? There are also several things that I try when seeing this type of problem: 1) Run the calculation mono-processor to see if it goes beyond the point where the simulation stops (if the volume mesh cell count isn't too great). If it does then you might n...
by Brian Angel
Wed Jan 21, 2015 12:12 pm
Forum: code_saturne usage
Topic: Heated square cavity flow Version 3.0 Tutorial 3
Replies: 2
Views: 1544

Re: Heated square cavity flow Version 3.0 Tutorial 3

Hello,

Please find attached the two CS routines that are required for this tutorial.

Regards,

Brian Angel.
by Brian Angel
Fri Jan 09, 2015 6:56 pm
Forum: code_saturne usage
Topic: Turbomachinery and mixing planes
Replies: 7
Views: 3735

Re: Turbomachinery and mixing planes

Hello, If your model contains just a single row of fan blades, i.e. a single blade row, then you do not need to use a mixing plane, frozen rotor or any other approach developed for single or multi-stage flow. All you will need to do is run this simulation with some sort of a time varying upstream bo...
by Brian Angel
Tue Dec 02, 2014 1:03 pm
Forum: code_saturne usage
Topic: Is any possible to change NTERUP in V3.0.3
Replies: 1
Views: 696

Re: Is any possible to change NTERUP in V3.0.3

Hello, Can you post some more information about the convergence problem, such as the listing file, and also some details about your case and mesh. My experience with Code_Saturne is that when it diverges one needs to look more closely at the mesh, possibly the numerical model and perhaps the time st...
by Brian Angel
Mon Dec 01, 2014 9:56 pm
Forum: code_saturne usage
Topic: Convergence troubles with large domains
Replies: 9
Views: 2174

Re: Convergence troubles with large domains

Hello, Progress has been made, which is good news. I think that the problem stems from the initial guess, as you have indicated. I think you have one outlet boundary so can you set the outlet boundary to inlet and define a -ve mass flow rate equivalent to what you are injecting via the inlet(s) (if ...
by Brian Angel
Fri Nov 28, 2014 9:38 am
Forum: code_saturne usage
Topic: Convergence troubles with large domains
Replies: 9
Views: 2174

Re: Convergence troubles with large domains

Hello, After the lines that you have posted in your message, there are a series of lists or histograms for different mesh checks. One of these lists, starting on line 372 in the check_mesh.log file, called "Histogram of the interior faces non-orthogonality coefficient (in degrees):" indica...