Search found 16 matches

by jacob
Thu Sep 29, 2022 9:06 am
Forum: code_saturne usage
Topic: Tube heat enchange
Replies: 12
Views: 10424

Re: Tube heat enchange

Hello, could you share the example with the mesh and everything?
by jacob
Mon Sep 26, 2022 9:55 am
Forum: code_saturne usage
Topic: Tube heat enchange
Replies: 12
Views: 10424

Re: Tube heat enchange

Well, I am no able to put any value in time step factor.
by jacob
Fri Sep 23, 2022 5:11 pm
Forum: code_saturne usage
Topic: Tube heat enchange
Replies: 12
Views: 10424

Re: Tube heat enchange

Well I checked couple scalar in solid zones, but until I used joining faces in mesh tab, there was no heat transfer. But I have no option rough wall even if I tick turbulence. Ok but coudn't I enter some very small value for specific heat capacity to obtain steady state solution faster? If I try tha...
by jacob
Thu Sep 22, 2022 6:25 am
Forum: code_saturne usage
Topic: Tube heat enchange
Replies: 12
Views: 10424

Re: Tube heat enchange

Thanks for reply.

And how do I prescribe coupling between fluid_solid boundaries? Is it enough just have merged mesh or use face joining?

Also, why the rough wall option is greyed out?

Why there is no option for "steady state" soluton? Code_saturne calculates only transient?
by jacob
Wed Sep 21, 2022 2:24 pm
Forum: code_saturne usage
Topic: Tube heat enchange
Replies: 12
Views: 10424

Re: Tube heat enchange

files
by jacob
Wed Sep 21, 2022 2:24 pm
Forum: code_saturne usage
Topic: Tube heat enchange
Replies: 12
Views: 10424

Re: Tube heat enchange

Hello,
I am trying to simulate something similar, but I cannot prescribe physical properties for the fluid domain.

Also, there is no option for solid-fluid interface.
by jacob
Tue Sep 20, 2022 6:14 pm
Forum: code_saturne usage
Topic: simple solid tube - gradient of the temperature
Replies: 7
Views: 1521

Re: simple solid tube - gradient of the temperature

Hello,
I looked into the documentation but it is quite overwhelming. Isn't there some example with mesh and defined groups, where is computed some user field and I could just run it?

I tried the vorticity example to try if I could even make work any user field.
by jacob
Mon Sep 19, 2022 11:13 am
Forum: code_saturne usage
Topic: simple solid tube - gradient of the temperature
Replies: 7
Views: 1521

Re: simple solid tube - gradient of the temperature

For example velocity in inlet. Runaway computation: At least one field exceeded allowed bounds (see log). I was searching for "cs_field_gradient" , but couldn't find any full example with mesh. I tried for example put this code into cs_user_extra_operations.c but it doesnť work. https://ww...
by jacob
Fri Sep 16, 2022 7:18 am
Forum: code_saturne usage
Topic: simple solid tube - gradient of the temperature
Replies: 7
Views: 1521

Re: simple solid tube - gradient of the temperature

Thanks for reply. I know that I can get heat flux at the boundary, but how to obtain heat flux and temperature gradient in the whole volume domain? And why the temperature on the volume domain is little less than on the boundary? I tried to use consistent units, but code saturne doesn't like for exa...
by jacob
Thu Sep 15, 2022 12:23 pm
Forum: code_saturne usage
Topic: simple solid tube - gradient of the temperature
Replies: 7
Views: 1521

simple solid tube - gradient of the temperature

Hello, I am trying to simulate simple steel tube with prescribed temperature. I would like to know how to get temperature gradient, and later heat flux. I read that I have to create cs_user_extra_operations and put it into SRC, but I don't know what code to write. Every time I find some example, it ...