|
[Sponsors] |
July 12, 2007, 12:58 |
periodic boundaries - flow through a net
|
#1 |
Guest
Posts: n/a
|
I want to simulate the flow through a grid (net). But I am more interested by the flow through a "basic cell" of this net. That's why I have a cruciform as a basic cell.
The turb model is keps / solver pressure based / node cell ; I have define a Control volume around this cruciform. The boundaries are defined as Periodic (opposite by pairs).When I run my simulation I got the flow back this cruciform : No Prob; The problem is that when I run the case with symmetrical boundaries (instead of periodic /net) , and so I simulate in this later case a cruciform with infinite arms : I get exactly the same results : flow, Cd….; It seems that in the first case (periodic boundaries ) the interactions with neighbored cells are NOT took in account . How to setup correctly the periodic boundaries conditions. I can't specify the Mass flow and I don't know neither the pressure gradient. (But I thought that for Periodic Boundaries, that the flow which is going out of a face is automatically "injected" in the opposite face of the CV, but it is not the case) Thanks for any kind of help |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
periodic boundaries | Mary | FLUENT | 27 | January 6, 2021 02:54 |
CGNS import in fluent - periodic boundaries. | Bjarne Børresen | FLUENT | 2 | April 25, 2013 12:12 |
URGENT! periodic boundaries | Alex H | FLUENT | 2 | November 14, 2006 16:02 |
periodic flow in 3D | SAM | FLUENT | 0 | October 11, 2006 19:19 |
Periodic boundaries and pressure drop | MatejK | CFX | 2 | July 12, 2005 05:47 |