|
[Sponsors] |
Boundary conditions for the bifurcated arteries. |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
August 10, 2011, 08:11 |
Boundary conditions for the bifurcated arteries.
|
#1 |
Member
Guifan Li
Join Date: Apr 2011
Location: New York City, U.S.
Posts: 96
Rep Power: 14 |
Hi OpenFoamers:
What I am doing is to repeat an experiment from a journal. It is a bifurcation with one inlet and two outlets. My boundary condition is following: p inlet: zeroGradient outlet1: zeroGradient outlet2: fixedValue ( Value uniform 0 ) ( I think this is "zero reference pressure" ) U inlet: parabolic steady velocity outlet1: zeroGradient ( fully developed ) outlet2: zeroGradient ( fully developed ) I use these boundary conditions from a journal. But the results is wired. The blood only pass through outlet2 which "zero reference pressure present". It never pass through the other vessel. Can someone point out errors for me? Thanks a lot! |
|
June 26, 2013, 14:46 |
|
#2 |
Member
India
Join Date: Oct 2012
Posts: 84
Rep Power: 13 |
Hi,
I am also doing the same problem. Single tube bifurcating in two. The problem in your boundary condition is with pressure. I used following condition for pressure at following outlet and got the fluid(in my case air) from both the outlets: OUTLET { type fixedValue; value uniform 0; } How did you set up your case? Can u share the case file? How did u manage to apply parabolic profile at the inlet? Regards, Mayank. |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Impinging Jet Boundary Conditions | Anindya | Main CFD Forum | 25 | February 27, 2016 13:58 |
symmetry boundary conditions in cfx | lost.identity | CFX | 41 | May 22, 2013 08:21 |
OpenFOAM Variable Velocity Boundary Conditions | NickolasPl | OpenFOAM Programming & Development | 2 | May 19, 2011 06:37 |
[Netgen] boundary conditions and mesh exporting | vaina74 | OpenFOAM Meshing & Mesh Conversion | 2 | May 27, 2010 10:38 |
[Commercial meshers] Trimmed cell and embedded refinement mesh conversion issues | michele | OpenFOAM Meshing & Mesh Conversion | 2 | July 15, 2005 05:15 |