|
[Sponsors] |
![]() |
![]() |
#1 |
New Member
Murilo Henrique Moreira
Join Date: Feb 2019
Posts: 4
Rep Power: 7 ![]() |
Dear all,
I am trying to reproduce the work of Amouzandeh et al. He uses analytical results to benchmark both P1 and fvDOM. I am in doubt of how to set up the fvDOM case for infinite parallel black walls separated by a gray media. I have a square domain of 1x1x0.1 with a discretization of 40x40x1. For the frontaAndBack faces I have an empty boundary condition. For top and bottom I have a symmetry plane and as reported on the paper, I am using greyDiffusiveRadiation for the IDefault file as follows: dimensions [1 0 -3 0 0 0 0]; internalField uniform 0; boundaryField { top { type symmetryPlane; } bottom { type symmetryPlane; } right { type greyDiffusiveRadiation; value uniform 400; } left { type greyDiffusiveRadiation; value uniform 600; } frontAndBack { type empty; } } The problem is that my temperature calculated by buoyantSimpleFoam is converging to zero. Does anybody knows how should I set this up? For the P1 case all I had to do was to set G as: dimensions [1 0 -3 0 0 0 0]; internalField uniform 0; boundaryField { top { type symmetryPlane; } bottom { type symmetryPlane; } right { type MarshakRadiationFixedTemperature; Trad uniform 400; // radiation temperature field value uniform 0; // place holder } left { type MarshakRadiationFixedTemperature; Trad uniform 600; // radiation temperature field value uniform 0; // place holder } frontAndBack { type empty; } } I am felling that I am losing something important Thank you very much! All the best, Murilo |
|
![]() |
![]() |
![]() |
![]() |
#2 |
Senior Member
Aram Amouzandeh
Join Date: Mar 2009
Location: Vienna, Vienna, Austria
Posts: 190
Rep Power: 17 ![]() |
Hallo Murilo,
please find attached the case set-ups of the mentioned "validation" cases. Cheers, Aram |
|
![]() |
![]() |
![]() |
![]() |
#3 |
New Member
Murilo Henrique Moreira
Join Date: Feb 2019
Posts: 4
Rep Power: 7 ![]() |
Dear Aram,
Thank you very much! It worked! All the best, Murilo |
|
![]() |
![]() |
![]() |
Tags |
analytical solution, fvdom, radiation |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Trying to validate fvDOM and view factors methods | zfaraday | OpenFOAM Running, Solving & CFD | 33 | August 25, 2021 07:58 |
Problem: Very long "write" time (~2h-3h) for results and transient results | Shawn_A | CFX | 16 | April 12, 2016 20:49 |
CFD validation on Eppler 473 airfoil and getting incorrect results | Willemsj | FLUENT | 4 | April 5, 2015 16:59 |
MY VALIDATION RESULTS (NON-NEWTONIAN FLUID) - with pictures and graphs | vitorspadetoventurin | OpenFOAM Running, Solving & CFD | 8 | December 8, 2014 08:26 |
MY VALIDATION RESULTS (NON-NEWTONIAN FLUID with pictures and graphs) | vitorspadetoventurin | OpenFOAM Verification & Validation | 0 | November 28, 2014 10:09 |