Search found 48 matches

by C0st4s
Wed Oct 17, 2018 4:18 pm
Forum: code_saturne usage
Topic: Umist_wall_function
Replies: 8
Views: 5343

Umist_wall_function

Hello,

I wanted some help to implement the Umist wall function for the k-epsilon model for buoyant flows. What are the related subroutines needed and if there are any related to the examples, please let me know.

Thanks,
Costas
by C0st4s
Fri Aug 24, 2018 9:38 am
Forum: code_saturne usage
Topic: Time-averaging/residuals
Replies: 1
Views: 1459

Time-averaging/residuals

Hi, Few questions concerning the time average and the normalised residuals shown by trackcvg in Code_Saturne v.5.0.8 when unsteady algorithm is switched on. First, how does the time-moments are computed in cs_user_parameters-time_moments.c and how can I know what is the moment_c_id[] value? Secondly...
by C0st4s
Tue Jul 31, 2018 9:02 pm
Forum: code_saturne usage
Topic: Turbulent_heat_flux[Y]
Replies: 4
Views: 2117

Re: Turbulent_heat_flux[Y]

Dear Yvan,

Many thanks, I have sorted it out. The parallel operation is call parall_bcast_r(irangv,uu) for r11 array which I assigned to double precision uu.

Regards,
Costas
by C0st4s
Tue Jul 31, 2018 12:09 pm
Forum: code_saturne usage
Topic: Turbulent_heat_flux[Y]
Replies: 4
Views: 2117

Re: Turbulent_heat_flux[Y]

Right, thanks so it will be something like call field_get_val_s_by_name() and what is the parallel assignment?

Regards,
Costas
by C0st4s
Sun Jul 29, 2018 2:39 pm
Forum: code_saturne usage
Topic: Turbulent_heat_flux[Y]
Replies: 4
Views: 2117

Turbulent_heat_flux[Y]

Hi, I have a question regarding printing the turbulent_heat_flux[Y] of the EBRSM model. Is there a way that I can call this variable and print it in a file using cs_user_extra_operations_1D_profile.f90? I noticed that it is already printed in the monitoring points and I want it printed along a line ...
by C0st4s
Tue Jul 03, 2018 11:21 pm
Forum: code_saturne usage
Topic: Code_Saturne_Automatic scheme and Low_Re_models Convergece
Replies: 5
Views: 3339

Re: Code_Saturne_Automatic scheme and Low_Re_models Convergece

Hi, Thank you all for your replies. I actually used SIMPLEC for the pressure-velocity coupling. I found out that the Rij-espilon EBRSM requires GGDH hypothesis for the scalar temperature. For the rest of the models apparently there was an issue with my mesh which I sorted by splitting the geometry i...
by C0st4s
Sun Jul 01, 2018 10:14 pm
Forum: code_saturne usage
Topic: Code_Saturne_Automatic scheme and Low_Re_models Convergece
Replies: 5
Views: 3339

Code_Saturne_Automatic scheme and Low_Re_models Convergece

Hi, Another 2 questions. 1) What is the scheme for the solver in equation parameters? (first choice before centred,upwind etc. in the GUI) 2) I am trying to run a heated channel flow case with low Reynolds number models (v2_BL_v2/k, Rij-epsilon EBRSM) and they do not converge. I run the case with hi...
by C0st4s
Wed Jun 27, 2018 9:59 pm
Forum: code_saturne usage
Topic: Temperature_boundary_wall
Replies: 4
Views: 2163

Re: Temperature_boundary_wall

Thanks, that's exactly what I was looking for!

Best regards,
Costas
by C0st4s
Tue Jun 26, 2018 9:53 am
Forum: code_saturne usage
Topic: Temperature_boundary_wall
Replies: 4
Views: 2163

Re: Temperature_boundary_wall

Dear Yvan,

Thanks for your reply. Basically I am extracting data using cs_user_extra_operations.f90 and I want to extract the boundary wall temperature. I would like to know what is the function that I have to call in order to get the wall temperature (boundary) of my domain?

Best regards,
Costas
by C0st4s
Mon Jun 25, 2018 3:04 pm
Forum: code_saturne usage
Topic: Temperature_boundary_wall
Replies: 4
Views: 2163

Temperature_boundary_wall

Hello,

I wanted to ask if there is a way to print the temperature of the wall boundary i.e. between two parallel plates in a file.

Thanks,
Costas