|
[Sponsors] |
Setting up Periodic Boundary Conditions for a spiral heat exchanger |
![]() |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
![]() |
![]() |
#1 |
New Member
Manish
Join Date: Oct 2022
Posts: 1
Rep Power: 0 ![]() |
Hey all!
So I'm trying to set up periodic boundary conditions for a special case, which has a spiral geometry, the problem is that there is not a proper symmetry between the two faces. I know that you can set up (rotational) periodic boundary conditions only if you both the faces on either side overlap together, but this geometry is a spiral and there is an offset between the two faces, which don't exactly overlap. The geometry that we're trying to analyze is of a precooler (a type of compact heat exchanger) whose coolant flows in a spiral as shown in green in the image, this can be simplified into a section (shown in the second image) which repeats periodically. I have tried looking at the User Guide for the solution, but I couldn't find it :/ I want to know how to go about actually implementing this, so if anyone can point me in the right direction, it'll be very helpful! Link to the image showing the boundary condition: https://imgur.com/a/T0mFKuD TIA! |
|
![]() |
![]() |
![]() |
![]() |
#2 | |
Member
MANU P ANAND
Join Date: Jul 2014
Location: Daegu , REPUBLIC OF KOREA
Posts: 36
Rep Power: 12 ![]() |
Quote:
|
||
![]() |
![]() |
![]() |
![]() |
#3 |
New Member
Manish Manjunath
Join Date: Apr 2022
Posts: 2
Rep Power: 0 ![]() |
I'm actually trying to map the outlet at the end of one pipe to the inlet of the other, I was initially thinking this has to be done with periodic boundary condition, but I feel like that's not possible now. I didn't quite understand what you meant by making the geometry in Periodic, could you please elaborate.
Is there a way to map the outlet at one end to the inlet at the other at all? I'm not able to understand how exactly one would solve this case with ANSYS Fluent. Please provide suggestions if any. TIA! |
|
![]() |
![]() |
![]() |
![]() |
#4 |
New Member
Manish Manjunath
Join Date: Apr 2022
Posts: 2
Rep Power: 0 ![]() |
I'm actually trying to map the outlet at the end of one pipe to the inlet of the other, I was initially thinking this has to be done with periodic boundary condition, but I feel like that's not possible now. I didn't quite understand what you meant by making the geometry in Periodic, could you please elaborate.
Is there a way to map the outlet at one end to the inlet at the other at all? I'm not able to understand how exactly one would solve this case with ANSYS Fluent. Please provide suggestions if any. TIA! |
|
![]() |
![]() |
![]() |
Tags |
boundary condition, heat exchanger, heat transfer, periodic bc |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Domain Imbalance | HMR | CFX | 5 | October 10, 2016 06:57 |
Basic Nozzle-Expander Design | karmavatar | CFX | 20 | March 20, 2016 09:44 |
Difficulty In Setting Boundary Conditions | Moinul Haque | CFX | 4 | November 25, 2014 18:30 |
An error has occurred in cfx5solve: | volo87 | CFX | 5 | June 14, 2013 18:44 |
Convective Heat Transfer - Heat Exchanger | Mark | CFX | 6 | November 15, 2004 16:55 |