After obtaining a transient FLOTRAN solution and entering POST1, vector plots of velocity seem entirely reasonable. However, after leaving POST1, doing some time-history postprocessing in POST26, and returning to POST1, a velocity vector plot gives extremely high values (~1e16 and/or "NaN's"). Is this a bug?

It indeed appears to be a bug. The attached input file (runs in ~1 minute) illustrates the problem when read interactively using ANSYS 8.1 (Release 8.1A1 UP20040609).

However, when read into release 9.0 (Release 9.0BETA UP20040819), the problem no longer occurs. Although a defect was not found in the database, the problem appears to have been fixed at release 9.0.

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