View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0002423 | OpenFOAM | Feature | public | 2017-01-07 17:18 | 2017-09-20 18:48 |
| Reporter | joegi | Assigned To | henry | ||
| Priority | normal | Severity | minor | Reproducibility | N/A |
| Status | resolved | Resolution | fixed | ||
| Summary | 0002423: wallGradU | ||||
| Description | I wonder if there is any particular reason why wallGradU is not in OF4x. | ||||
| Tags | No tags attached. | ||||
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There is no particular need for it, the more general 'grad' is provided which includes the wall gradient. |
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Attached is the tarball 'contrib_bug2423.tar.gz' what provides two scripts for at least two of a few other missing references to utilities that were replaced, by using the existing reference scripts as a base: - bin/stressComponents Reproduced with "<solverName> -funcs '(R components(turbulenceProperties:R))'" - bin/wallGradU Reproduced with "postProcess -func 'grad(U)'" Notes: - Can be applied to 4.x and dev - I used the Copyright year only as it being 2017. I then checked for OpenFOAM-dev and 'wdot' seemed to be the only other one missing, which is attached in 'contrib_bug2423_dev.tar.gz': - bin/wdot Reproduced with "postProcess -func XiReactionRate" Beyond these: - 'uprime' and 'pPrime2' are still missing, but I couldn't figure out what they were replaced with exactly and the git history didn't provide detailed comments of what they were replaced with :( - 'dsmcFieldsCalc' I didn't even bother, because it didn't seem to be used by any tutorials, at least all the way back to 2.0.x. |
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Resolved in OpenFOAM-dev by commit 80d540765a4b29d7e14af30526df3a797d892635 Resolved in OpenFOAM-4.x by commit d5dd04e0a63b88c2361182a6d74b429692202749 |
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I just would like to point out than when using postProcess -func 'grad(U)' -noZero It gives the following warning --> FOAM Warning : functionObjects::grad grad(U) cannot find required object U of type volScalarField --> FOAM Warning : functionObjects::grad grad(U) cannot find required object U of type surfaceScalarField I guess is nothing to worry about as grad(U) is computed, but usually openfoam is very quiet so I worry a little bit when this kind of warnings. |
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It only warns until it finds what it was looking for... which can be seen here: - 'foundObject': https://github.com/OpenFOAM/OpenFOAM-dev/blob/146f7e6beaf592e4b17f606fa9794436be6de32f/src/functionObjects/field/fieldExpression/fieldExpressionTemplates.C#L30 - 'calcGrad': https://github.com/OpenFOAM/OpenFOAM-dev/blob/146f7e6beaf592e4b17f606fa9794436be6de32f/src/functionObjects/field/grad/gradTemplates.C - How 'calc' calls 'calcGrad': https://github.com/OpenFOAM/OpenFOAM-dev/blob/146f7e6beaf592e4b17f606fa9794436be6de32f/src/functionObjects/field/grad/grad.C#L43 @joegi: Given the code listed above, what do you suggest should be done? |
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Just to let you know that the header of grad(U) is also a little bit confusing. I got something like this: # xx xy xz yx yy yz zx zy zzgrad(U)_0 grad(U)_1 grad(U)_2 grad(U)_3 grad(U)_4 grad(U)_5 grad(U)_6 grad(U)_7 grad(U)_8 I think the header should be something like this #x y z grad(U)_0 grad(U)_1 grad(U)_2 grad(U)_3 grad(U)_4 grad(U)_5 grad(U)_6 grad(U)_7 grad(U)_8 |
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@joegi: Sorry... but what exactly are you referring to? How did you get that output? I ask this because running <tt>postProcess -func 'grad(U)'</tt> only writes the 'grad(U)' field! |
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my bad, that is the output of a surface sampling of grad(U). |
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I'm setting this issue back to resolved+fixed as stated in comment ~7618, because I can't figure out to which function object @joegi was referring to in the previous comment. @joegi: If you find this issue again, please create a new report and provide more details. I've looked for 15-20 minutes for this and could not find what kind of sampling you used. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2017-01-07 17:18 | joegi | New Issue | |
| 2017-01-07 17:37 | henry | Note Added: 0007605 | |
| 2017-01-08 23:49 | wyldckat | File Added: contrib_bug2423.tar.gz | |
| 2017-01-08 23:49 | wyldckat | Note Added: 0007608 | |
| 2017-01-08 23:49 | wyldckat | File Added: contrib_bug2423_dev.tar.gz | |
| 2017-01-08 23:49 | wyldckat | Assigned To | => henry |
| 2017-01-08 23:49 | wyldckat | Status | new => assigned |
| 2017-01-09 14:39 | henry | Status | assigned => resolved |
| 2017-01-09 14:39 | henry | Resolution | open => fixed |
| 2017-01-09 14:39 | henry | Fixed in Version | => 4.x |
| 2017-01-09 14:39 | henry | Note Added: 0007618 | |
| 2017-01-12 18:37 | joegi | Status | resolved => feedback |
| 2017-01-12 18:37 | joegi | Resolution | fixed => reopened |
| 2017-01-12 18:37 | joegi | Note Added: 0007628 | |
| 2017-01-12 23:49 | wyldckat | Note Added: 0007630 | |
| 2017-01-15 19:07 | joegi | Note Added: 0007637 | |
| 2017-01-15 19:07 | joegi | Status | feedback => assigned |
| 2017-01-15 22:37 | wyldckat | Note Added: 0007638 | |
| 2017-01-16 06:54 | joegi | Note Added: 0007641 | |
| 2017-02-20 20:49 | wyldckat | Status | assigned => resolved |
| 2017-02-20 20:49 | wyldckat | Resolution | reopened => fixed |
| 2017-02-20 20:49 | wyldckat | Note Added: 0007775 |
