FDS 7 Numerical Instability for Cylinder

[dvswenson]

This model tests a GEOM object in FDS 7. The model was made by importing a CAD stl file (attached) and converting to GEOM. I ran this model using the following FDS version:

Fire Dynamics Simulator

Current Date : November 24, 2021 10:29:19 Revision : FDS6.7.6-877-g5759a97b4-nightly Revision Date : Sun Nov 14 11:13:46 2021 -0500 Compiler : Intel ifort 2021.4.0 Compilation Date : Tue 11/16/2021 08:03 AM

The solution stopped at 0.48 seconds with a numerical instability. cylinder_stl.zip cylinder_stl_fds.zip

[marcosvanella]

Thank you Dan, we'll have a look.

[marcosvanella]

Working.