View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0002924||OpenFOAM||[All Projects] Bug||public||2018-05-10 15:30||2018-05-14 18:31|
|Status||closed||Resolution||unable to reproduce|
|Fixed in Version|
|Summary||0002924: [issues]fvDoM raidation model using symmetry boundary condition in IDefaults|
I am not sure if I should call this is a bug, but I don't have other options.
Basically, in my heat transfer case, I have a symmetry plane. I found when I am using fvDOM radiation model, the surface (using externalWallHeatFluxTemperature for T, greyDiffusiveRadiation for IDefaults boundary condtion) next to symmetry plane (using symmetry both in T and IDefaults boundary conditon) has a high chance to obtain weird (diverged) radiation heat flux at some mesh points. This weird radiation heat flux will eventually lead simulation to get a negative temperature.
I used to have a similar issue at surface (same externalWallHeatFluxTemperature, greyDiffusiveRadiation) near Velocity inlet (fixedValue for T, and zeroGradient for IDefaults). But in inlet boundary condition, I can switch it to greyDiffusiveRadiation for IDefaults. Then, I got much improved convergence and no weird radiation happened.
However, if I try to apply greyDiffusiveRadiation on symmetry plane (symmetry for U, T ... and greyDiffusiveRadiation for IDefaults), OpenFOAM will throw an error said boundary condition type is clashed between symmetry and greyDiffusiveRadiation.
I am highly doubt if the symmetry boundary condition is corrected in fvDoM radiation model, and wondering if there is a way to try apply greyDiffusiveRadiation without clash with symmetry?
|Tags||No tags attached.|
Quoting from the rules page: https://bugs.openfoam.org/rules.php
An issue report therefore must include the following:
* A clear set of instructions that reproduces the issue, including key files, if required.
What I mean is that a complete test case, ready to be used, would make it a lot easier to figure out what's going on, preferably one based on OpenFOAM's own tutorial cases. And since you're more familiar with what to expect, such a test case would allow us to reproduce the same error and diagnose the issues.
||FvDOM does not work in conjunction with constraint patches which involve transformations. This is a limitation, not a bug.|
|2018-05-10 15:30||fxzf||New Issue|
|2018-05-11 16:06||wyldckat||Note Added: 0009555|
|2018-05-14 18:31||will||Assigned To||=> will|
|2018-05-14 18:31||will||Status||new => closed|
|2018-05-14 18:31||will||Resolution||open => unable to reproduce|
|2018-05-14 18:31||will||Note Added: 0009572|