Search found 7 matches

Thu Apr 25, 2019 1:52 pm
Forum: code_saturne usage
Topic: how does the periodic routine calculate pressure gradient
Replies: 6
Views: 850

Re: how does the periodic routine calculate pressure gradient

Hi there,
I think I have overlooked this completely. But If you could just answer this question, that would be great. Essentially the pressure gradient is calculated by measuring the pressure at the inlet and outlet, then working out the difference. Is that correct?

Thank you
Wed Apr 24, 2019 11:33 pm
Forum: code_saturne usage
Topic: how does the periodic routine calculate pressure gradient
Replies: 6
Views: 850

Re: how does the periodic routine calculate pressure gradient

Okay that makes more sense thank you. I will try to investigate further maybe look through some documents.
Thanks for the help though!!!!
Wed Apr 24, 2019 5:00 pm
Forum: code_saturne usage
Topic: how does the periodic routine calculate pressure gradient
Replies: 6
Views: 850

Re: how does the periodic routine calculate pressure gradient

Hello Yvan, I understand the flow rate is constant across the domain due to periodic conditions. But I was trying to understand how the pressure gradient is calculated in the listing file. Because I am comparing it to an experimental pressure drop value based on a frictional factor. The two values m...
Wed Apr 24, 2019 1:19 pm
Forum: code_saturne usage
Topic: how does the periodic routine calculate pressure gradient
Replies: 6
Views: 850

how does the periodic routine calculate pressure gradient

Hi everyone, I have incorporated a periodic subroutine for my simulation set at the inlet and outlet of my model provided by a colleague. I have attached the code below. It governs the fluid flow. I am trying to understand the code. I am unsure how it calculates the pressure gradient that can be see...
Thu Apr 04, 2019 10:17 am
Forum: code_saturne usage
Topic: Comparing smooth and rough walls
Replies: 5
Views: 725

Re: Comparing smooth and rough walls

Thank you for the response I will try these techniques out in Code_Saturne and Paraview respectively.
Mon Apr 01, 2019 5:28 pm
Forum: code_saturne usage
Topic: Comparing smooth and rough walls
Replies: 5
Views: 725

Re: Comparing smooth and rough walls

Thank you for the reply Luciano. I am currently trying to see if I can get an average value through the software 'paraview'.
If this isn't possible I will try another method.
Mon Apr 01, 2019 12:05 pm
Forum: code_saturne usage
Topic: Comparing smooth and rough walls
Replies: 5
Views: 725

Comparing smooth and rough walls

Hello fellow Code_Saturne users. I am running a steady state simulation with rough walls and would like to compare it to smooth walls. For my rough walls, I believe i Have met convergence despite what seems to look like a noisy signal. Is there any way to alleviate the noise, maybe by constructing s...