|
[Sponsors] |
Problem with velocity values - flow through diffuser |
![]() |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
![]() |
![]() |
#1 |
New Member
karthiek
Join Date: Jan 2012
Posts: 8
Rep Power: 15 ![]() |
Hello,
I am currently modelling flow through a gas turbine diffuser. I ve used K-E model with 0.3% turbulence intensity, inlet- 37m/sec velocity, outlet- atm pressure, free slip wall, incompressible flow, fluid-air. I am also trying to verify the results experimentally. The problem is my pressure values are sort of alright. But the velocity values have gone haywire. My diffuser area ratio is 0.3249. So the exit velocity should be around 10m/sec. But I get values of 3, 4 m/sec. Is there an error in my model. The continuity equation therefore is not satisfied. But all my residuals are perfect Any suggestions?? Thank you Last edited by karthikn21590; March 6, 2012 at 07:37. |
|
![]() |
![]() |
![]() |
Tags |
diffuser, velocity |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Steady pipe flow mean velocity higher than inlet velocity | anita | OpenFOAM Running, Solving & CFD | 7 | September 25, 2012 05:35 |
Velocity profiles problem behind the elbow (3D problem) | kabat73 | FLUENT | 8 | May 9, 2010 04:26 |
ATTENTION! Reliability problems in CFX 5.7 | Joseph | CFX | 14 | April 20, 2010 15:45 |
calculating mass flow rate from exported velocity values | Sasha | FLUENT | 0 | April 6, 2009 16:07 |
Velocity boundary values for inviscid flow | jelmer | OpenFOAM Post-Processing | 2 | September 12, 2006 09:56 |