|
[Sponsors] |
LRR turbulence model - initial condition set up |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
September 19, 2013, 15:46 |
LRR turbulence model - initial condition set up
|
#1 |
Member
Davide
Join Date: Dec 2012
Posts: 33
Rep Power: 13 |
||
September 20, 2013, 04:37 |
|
#2 |
Senior Member
Mohsen KiaMansouri
Join Date: Jan 2010
Location: CFD Lab
Posts: 118
Rep Power: 16 |
Dear Davide
About your last question: Yes. it is possible. there are a lot of posts here in cfd-online regarding this matter. search the forums for timeVaryingMappedFixedValue or swak4Foam.
__________________
“If you have an apple and I have an apple and we exchange these apples then you and I will still each have one apple. But if you have an idea and I have an idea and we exchange these ideas, then each of us will have two ideas.” |
|
September 20, 2013, 04:54 |
|
#3 |
Member
Davide
Join Date: Dec 2012
Posts: 33
Rep Power: 13 |
i Know about the timeVarying...
my question is more specific... if I want to use a profile for velocity, I create a file U for the velocity values in caseDir/constants/boundary data/inletPatch what file should I create in order to declare turbulence stresses profiles? |
|
September 20, 2013, 07:43 |
|
#4 |
Senior Member
Mohsen KiaMansouri
Join Date: Jan 2010
Location: CFD Lab
Posts: 118
Rep Power: 16 |
There is a tutorial in OpenFOAM which uses timeVaryingMappedFixedValue for inlet: pitzDailyExptInlet
your boundaryData must be something like this: boundaryData you must add your R inlet Values to this folder: 0 And then in your 0 folder, specify Code:
{ type timeVaryingMappedFixedValue; setAverage off; }
__________________
“If you have an apple and I have an apple and we exchange these apples then you and I will still each have one apple. But if you have an idea and I have an idea and we exchange these ideas, then each of us will have two ideas.” |
|
September 20, 2013, 08:14 |
|
#5 |
Member
Davide
Join Date: Dec 2012
Posts: 33
Rep Power: 13 |
how am i supposed to separate the the three turbulence stresses profiles?
|
|
September 20, 2013, 13:57 |
|
#6 |
Senior Member
Mohsen KiaMansouri
Join Date: Jan 2010
Location: CFD Lab
Posts: 118
Rep Power: 16 |
R is a symmetric tensor that requires 6 components (not 3). have a look at the U in 0
write R according to it but with 6 components not 3.
__________________
“If you have an apple and I have an apple and we exchange these apples then you and I will still each have one apple. But if you have an idea and I have an idea and we exchange these ideas, then each of us will have two ideas.” |
|
Tags |
inlet, lrr, profile, turbulence |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Superlinear speedup in OpenFOAM 13 | msrinath80 | OpenFOAM Running, Solving & CFD | 18 | March 3, 2015 06:36 |
Moving mesh | Niklas Wikstrom (Wikstrom) | OpenFOAM Running, Solving & CFD | 122 | June 15, 2014 07:20 |
pimpleFoam: turbulence->correct(); is not executed when using residualControl | hfs | OpenFOAM Running, Solving & CFD | 3 | October 29, 2013 09:35 |
Extremely slow simulation with interDyMFoam | jrrygg | OpenFOAM Running, Solving & CFD | 9 | April 23, 2013 11:14 |
calculation stops after few time steps | sivakumar | OpenFOAM Running, Solving & CFD | 7 | March 17, 2013 07:37 |