View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0003609 | OpenFOAM | Feature | public | 2021-01-07 19:27 | 2021-01-08 13:21 |
| Reporter | Tiberias_ | Assigned To | henry | ||
| Priority | none | Severity | trivial | Reproducibility | always |
| Status | resolved | Resolution | fixed | ||
| Platform | Unix | OS | Ubuntu | OS Version | 20.04 |
| Summary | 0003609: Included y+ function object doesnt show realtime values in simulation log | ||||
| Description | In controlDict I have included the yPlus function by: functions { #includeFunc residuals #includeFunc yPlus } For running simpleFoam for example I have a writeInterval of 10. In Version 7 of OpenFOAM I got the current yPlus values during simulation at the point of timestep writing. For example: [...] Time = 10 DILUPBiCGStab: Solving for Ux, Initial residual = 0.2159051, Final residual = 0.001826788, No Iterations 4 DILUPBiCGStab: Solving for Uy, Initial residual = 0.06784772, Final residual = 0.0002873746, No Iterations 5 DILUPBiCGStab: Solving for Uz, Initial residual = 0.1879635, Final residual = 0.0016049, No Iterations 4 DICPCG: Solving for p, Initial residual = 0.0353227, Final residual = 0.0003407865, No Iterations 46 DICPCG: Solving for p, Initial residual = 0.002074315, Final residual = 1.987197e-05, No Iterations 106 time step continuity errors : sum local = 0.0016527, global = 0.0001161923, cumulative = -0.001386994 DILUPBiCGStab: Solving for omega, Initial residual = 0.0134613, Final residual = 9.790165e-05, No Iterations 2 DILUPBiCGStab: Solving for k, Initial residual = 0.03926103, Final residual = 0.0001613133, No Iterations 2 bounding k, min: -6.874777e-06 max: 63.89042 average: 0.05916318 ExecutionTime = 152.19 s ClockTime = 158 s yPlus yPlus write: writing object yPlus patch minZ y+ : min = 3.509461, max = 1217.934, average = 298.061 patch wall y+ : min = 0.1989935, max = 129.9126, average = 4.696098 Time = 11 CDILUPBiCGStab: Solving for Ux, Initial residual = 0.1944093, Final residual = 0.001118355, No Iterations 5 [...] Since Version 8 this information doesnt appear anymore. It´s just an inconspicuous feature but it was helpful for investigating the progress of simulation. I am not that good at coding, I couldn´t find out if it´s a deliberate change or a bug. | ||||
| Tags | No tags attached. | ||||
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Logging is now optional: #includeFunc yPlus(log=true) |
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I didn't noticed that change for optional logging, tried it out and works. Thank you! |
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Maybe it could be helpful to add this optional logging information to the yPlus Header. Something like: Property | Description | Required | Default value type | type name: yPlus | yes | phase | phase name | no | none log | write yPlus data to standard output | no | no |
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It is a generic control applicable to all functionObjects documented in the base-class: Description Namespace for functionObjects. OpenFOAM includes a collection of functionObjects selected by the user at run-time to manipulate the simulation and provide mechanisms to extract field and derived quantities. Alternatively, the same actions can be executed after the simulation using the \c -postProcess command-line option. \subsection secFunctionObjects Using functionObjects FunctionObjects are selected by additional entries in the $FOAM_CASE/system/controlDict dictionary. Each object is listed in the \c functions sub-dictionary, e.g. to select the \c functionObjectType functionObject the following entry would be specified: \verbatim functions { <functionObjectName> { type functionObjectType; libs ("libMyFunctionObjectlib.so"); region defaultRegion; enabled yes; startTime 0; endTime 10; writeControl writeTime; writeInterval 1; ... } } \endverbatim Where: \table Property | Description | Required | Default value type | Type of functionObject | yes | libs | Libraries containing implementation | yes | region | Name of region for multi-region cases | no | enabled | On/off switch | no | yes log | Log information to standard output | no | yes startTime| Start time | no | endTime | End time | no | executeAtStart | Execute at start time switch | no | yes executeControl | See time controls below | no | timeStep executeInterval | Steps between each execute phase | no | writeControl | See time controls below | no | timeStep writeInterval | Steps between each write phase | no | \endtable Time controls: \table Option | Description timeStep | Execute/write every 'Interval' time-steps writeTime | Execute/write every 'Interval' output times adjustableRunTime | Execute/write every 'Interval' run time period runTime | Execute/write every 'Interval' run time period clockTime | Execute/write every 'Interval' clock time period cpuTime | Execute/write every 'Interval' CPU time period none | Execute/write every time-step \endtable The sub-dictionary name \c \<functionObjectName\> is chosen by the user, and is typically used as the name of the output directory for any data written by the functionObject. The \c type entry defines the type of function object properties that follow. FunctionObjects are packaged into separate libraries and the \c libs entry is used to specify which library should be loaded. Each functionObject has two separate run phases: - The \c execute phase is meant to be used for updating calculations or for management tasks. - The \c write phase is meant for writing the calculated data to disk. For each phase the respective time controls are provided, as listed above. Class Foam::functionObject Description Abstract base-class for Time/database functionObjects. See also Foam::functionObjectList Foam::functionObjects::timeControl SourceFiles functionObject.C |
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I see, that is what I was looking for. Just a little thing: The properties table says that the default value for log is yes, is this information still up-to-date? As far as I have seen now the function object yPlus has the default value "no", I also tried forceCoeffs, same behaviour. |
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The default is "no" I will correct the documentation. |
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Resolved in OpenFOAM-8 by commit 2827872a22fa783f8d9cbe9c9f45792457b0039e Resolved in OpenFOAM-dev by commit 0b21dbf1ec051280b79665687c3958c562991d13 |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2021-01-07 19:27 | Tiberias_ | New Issue | |
| 2021-01-07 19:50 | henry | Note Added: 0011801 | |
| 2021-01-07 19:55 | Tiberias_ | Note Added: 0011802 | |
| 2021-01-07 20:09 | Tiberias_ | Note Added: 0011803 | |
| 2021-01-07 20:42 | henry | Note Added: 0011804 | |
| 2021-01-07 21:14 | Tiberias_ | Note Added: 0011805 | |
| 2021-01-07 21:49 | henry | Note Added: 0011806 | |
| 2021-01-08 13:21 | henry | Assigned To | => henry |
| 2021-01-08 13:21 | henry | Status | new => resolved |
| 2021-01-08 13:21 | henry | Resolution | open => fixed |
| 2021-01-08 13:21 | henry | Fixed in Version | => 8 |
| 2021-01-08 13:21 | henry | Note Added: 0011807 |
