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Message("\nResiduals are not set to be saved.\n") Ĭell Function Values(domain, "temperature-residual") Message("\nSaving Residuals in UDMs…\n") Ĭ UDMI(c,ct,0) = C STORAGE R(c,ct, SV P R) Ĭ UDMI(c,ct,1) = C STORAGE R(c, ct, SV U R) Ĭ UDMI(c,ct,2) = C STORAGE R(c, ct, SV V R) Ĭ UDMI(c,ct,3) = C STORAGE R(c, ct, SV W R) Ĭ UDMI(c,ct,4) = C STORAGE R(c, ct, SV T R) If(RP Get Boolean("save-cell-residuals?")) It might work with previous and future versions but there is no guarantee.*/ It was used by ANSYS internally with Fluent 190. *Note that UDF is not covered by the ANSYS support contract. It might work with previous and future versions but there is no guarantee.
![tecplot 360 scale bar tecplot 360 scale bar](https://i.ebayimg.com/images/g/o8AAAOSwm~NgzUWn/s-l1600.jpg)
The UDF in this solution is provided as it is without support. Note that UDF is not covered by the ANSYS support contract. In this second macro, "temperature-residual" can be replaced by the name you would enter in the TUI if you were to use TUI commands to produce e.g. In this example, a first DEFINE ON DEMAND stores the residual values of Pressure (= Mass Imbalance) X,Y and Z velocity, and the temperature in 5 UDMs.Ī second DEFINE ON DEMAND use a general way to access any post processing variable with C POST VAR.
![tecplot 360 scale bar tecplot 360 scale bar](https://i.ebayimg.com/images/g/iXwAAOSwV8Ngro1e/s-l1600.jpg)
It is also possible to access the residual values in a UDF. You can now access the residuals in the post-processing. It might be useful to access the residuals of variables at the cell level.Īnd answer 'yes' to 'Save cell residuals for post-processing?' If you want to store the residuals in your data file, you have to adjust the data file quantities (File > Data File Quantities) They can also be used for convergence monitors. Now the residuals of all solved equations can be accessed and postprocessed within Fluent, see Screenshot1. Keep temporary solver memory from being freed? noĪllow selection of all applicable discretization schemes? noĪfterwards you have to do one dummy iteration so that the specific data fields are created.
![tecplot 360 scale bar tecplot 360 scale bar](https://www.tecplot.com/docs/pytecplot/_images/streamtrace_term_line.png)
Save cell residuals for post-processing? yes This option has to be set to "yes" or "y". "Save cell residuals for post-processing? " The residual values that are made available for postprocessing are the unscaled values. These values can be activated by the following TUI command: Then to scrutinize the areas where the maximum values of the unscaled residuals are happeningĪnd to find out whether they are related to a local issue such as poorly meshed regions (poor metrics or low resolution),ĭomain interface, local abrupt physic change (shock), etc. Save the residuals for post processing (in TUI solver/set/expert ) and #press “Enter” once a sufficient outlet section has been built***. Mesh/modify-zones/extrude-face-zone-delta
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