|
[Sponsors] |
boussineSimpleFoam, inlet/outlet and timestep errors - humanbody case |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
August 12, 2014, 09:55 |
boussineSimpleFoam, inlet/outlet and timestep errors - humanbody case
|
#1 |
Member
Gowain
Join Date: May 2014
Location: Ireland
Posts: 86
Rep Power: 11 |
Hi
apologies for the length of this post but I need to make sure I get answers and the questions are understood properly. I am using boussinesqSimpleFoam solver for a human body with 100watts heatflux in a cube domain with inlet and outlet points overhead. Firstly, I have been having issues assigning appropriate inlet and outlet boundary conditions, inlet 0.4m/s – I have managed to get results for when 0/U inlet patch is fixed value and 0/U outlet patch is zerogradient and 0/p inlet is zeroGradient and 0/p outlet is calculated – however because of the zeroGradient bc as the solution continues the velocity at outlet reaches an unrealistic value, I am trying to replicate overhead and air conditioning So, what inlet and outlet conditions do I need to have , I have tried to use flowRateVelocityInlet as well as inletOutlet but am unsure how to properly impose them. I also expexted to see a thermal plume but one is not present... Also my timestep errors seem to be growing – which is a concern – again I believe this to be due to the improper inlet and outlet boundary conditions please see attached for some better understanding also 0 file: https://copy.com/jMC3ORxH3RWK thank a lot g Last edited by eaglemckenna; August 12, 2014 at 11:43. |
|
August 13, 2014, 06:00 |
|
#2 |
Senior Member
Joachim Herb
Join Date: Sep 2010
Posts: 650
Rep Power: 21 |
For the use of inletOutlet boundary condition have a look for the tutorial in incompressible/pimpleFoam/TJunction
If you are looking for a tutorial with a special boundary condition use these commands: Code:
cd $FOAM_TUTORIALS/ find . -type f | grep -E "/0.*/" | xargs grep "inletOutlet" | less |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Is there a tool to reset case or delete the timestep folders of previous running? | funature | OpenFOAM Running, Solving & CFD | 5 | September 23, 2013 09:24 |
pisoFoam with k-epsilon turb blows up - Some questions | Heroic | OpenFOAM Running, Solving & CFD | 26 | December 17, 2012 04:34 |
simpleFoam errors... timestep continuity error/Floating point exception | headwing | OpenFOAM | 1 | January 15, 2011 04:04 |
Convergence moving mesh | lr103476 | OpenFOAM Running, Solving & CFD | 30 | November 19, 2007 15:09 |
Why timestep for steady state case? | Srikanth | Main CFD Forum | 4 | September 19, 2007 06:26 |