Search found 280 matches
- Mon May 22, 2017 11:35 am
- Forum: code_saturne usage
- Topic: 2D_AIRFOIL TESTCASE
- Replies: 1
- Views: 2000
Re: 2D_AIRFOIL TESTCASE
Hello, I think that you forget to specify the velocity direction at inlet BC, maybe this is the problem. Always search in the forum your keywords ("lift, drag, etc") in order to know if someone has ask the same question, I leave here a link http://code-saturne.org/forum/viewtopic.php?f=2&a...
- Wed May 17, 2017 1:06 pm
- Forum: code_saturne usage
- Topic: Wall function
- Replies: 2
- Views: 2109
Re: Wall function
Hello,
In section 5.4 of the theory guide and in section 8.2.5 of the user guide (Ver 4.3) you have information about the wall functions and the turbulence models. I think that should change your turbulence model to K-omega or V2-f.
Regards
Luciano
In section 5.4 of the theory guide and in section 8.2.5 of the user guide (Ver 4.3) you have information about the wall functions and the turbulence models. I think that should change your turbulence model to K-omega or V2-f.
Regards
Luciano
- Tue May 16, 2017 8:24 pm
- Forum: code_saturne usage
- Topic: Convergence
- Replies: 21
- Views: 10699
Re: Convergence
Hello, Yes, N_iter are number of iterations used to solve the linear system to the relative precision (epsilo). You have a section in the user guide (8.2.11) about error estimators for Navier-Stokes. If the derive has dropped several order of magnitudes this means that the flow is not changing and y...
- Fri May 12, 2017 10:59 am
- Forum: code_saturne usage
- Topic: Convergence
- Replies: 21
- Views: 10699
Re: Convergence
Hello,
In the listing file you can check the mass flow conservation in the section "BOUNDARY MASS FLOW INFORMATION"; there you have for each boundary condition type the mass flow and I think with a value of 0.58E+12 your solution it is not converging...
Regards,
Luciano
In the listing file you can check the mass flow conservation in the section "BOUNDARY MASS FLOW INFORMATION"; there you have for each boundary condition type the mass flow and I think with a value of 0.58E+12 your solution it is not converging...
Regards,
Luciano
- Thu May 11, 2017 11:50 am
- Forum: code_saturne usage
- Topic: Convergence
- Replies: 21
- Views: 10699
Re: Convergence
Hello, Yes, if you want to read in Paravis you have to save in csv format and about how many points, this will depend of your physical problem, the domain, etc. You have to know where to locate them. The lines of code that I posted are not exclusive for CS so you don't have to implement anything, yo...
- Wed May 10, 2017 8:37 pm
- Forum: code_saturne usage
- Topic: Convergence
- Replies: 21
- Views: 10699
Re: Convergence
Hello, As Yvan mention, you could use monitoring (probe) points inserted through the GUI (Calculation Control -> Output control -> monitoring points) in different spatial location in order to check the time/iteration evolution of your variables (pressure, velocity, etc), but not the derive indicator...
- Thu May 04, 2017 10:07 am
- Forum: code_saturne usage
- Topic: k omega model converge problem
- Replies: 8
- Views: 6140
Re: k omega model converge problem
Hello, I was reading your last listing file and note the following things. Issue has been detected during the mesh quality check, also you have a message that all your cells have a mass source term, it is correct? At the outlet you are using a free inlet/outlet BC without a external head loss defini...
- Tue May 02, 2017 8:40 am
- Forum: code_saturne usage
- Topic: k omega model converge problem
- Replies: 8
- Views: 6140
Re: k omega model converge problem
Hello, You can find information about the turbulence model and wall functions in both, the theory and users guide of CS. Also, you can check the files(cs_wall_functions.c and cs_wall_functions.h) about the implementation of this laws. Additionally, you are solving a heat transfer problem so you need...
- Tue Apr 11, 2017 11:07 am
- Forum: code_saturne usage
- Topic: How to couple two fluid domain
- Replies: 5
- Views: 3119
Re: How to couple two fluid domain
Hello,
May be this old post could help you http://code-saturne.org/forum/viewtopic.php?f=2&t=67.
I think that you should try first to couple the two fluid domains and then these with syrthes,
Regards
Luciano
May be this old post could help you http://code-saturne.org/forum/viewtopic.php?f=2&t=67.
I think that you should try first to couple the two fluid domains and then these with syrthes,
Regards
Luciano
- Mon Apr 10, 2017 6:43 pm
- Forum: code_saturne usage
- Topic: How to couple two fluid domain
- Replies: 5
- Views: 3119
Re: How to couple two fluid domain
Hello,
What data/information do you need to exchange through the interfaces solid-fluid and fluid-fluid?
Regards
Luciano
What data/information do you need to exchange through the interfaces solid-fluid and fluid-fluid?
Regards
Luciano