How can I read Tecplot format data into FV? Binary Tecplot format files are among the data types which can be read using the GENERIC Unstructured..& Data Input option. If you have ASCII format Tecplot files, you can use Tecplot’s Preplot converter to make a binary file.
How can I visualize turbulence and flow features using surfaces? The Q criterion, introduced by Hunt et al. in 1988, is commonly used to identify regions of recirculation in flow fields. As of FieldView version 17, Q-criterion is a built-in function available on the Function Calculator, increasing peformance as compared to using this function via feature_detection_formulas.frm available with previous versions of FieldView.
I’ve used the PLOT3D reader in a FieldView version prior to 12.3 to read my overflow-2 data. Are restarts created in that version compatible with version 12.3? Yes, but don’t try editing FVX scripts (.fvx) or data restarts (.dat) to change the data reader name from plot3d to overflow-2 and expect it to work properly, since some derived function names have been changed, (eg. ‘Pressure [PLOT3D]’ vs. ‘Pressure [OVERFLOW]’). Constants […]
How can streamlines be restricted to a surface? You can seed the target surface, and integrate streamlines for a new (modified) velocity field you have created using the Function Formula Specification Panel. For instance, if you have a plane (flat surface), let N=(N1,N2,N3) be the (constant) normal to the surface: N = nrmlz (N1*UnitX + N2*UnitY + N3*UnitZ) where “nrmlz” makes sure this is a unit normal (length 1). Let […]
My overflow-2 data doesn’t look correct in FieldView. All the scalar values seem misplaced. What could be wrong? There is a known issue with overflow brkset files in FieldView, where some brkset formats are not correctly recognized. Removing or hiding the brkset files will allow the data to be read and post-processed accurately.
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