Pyrosim fds5/10/2023 ![]() ![]() WARNING: Minimum density, 0.117 kg/m3, clipped in Mesh 10ĮRROR: Numerical Instability - FDS stopped (CHID: mesh0_8_v2) WARNING: Minimum density, 0.117 kg/m3, clipped in Mesh 12ĮRROR: Numerical Instability - FDS stopped (CHID: MESH-TESTv3) Time Step: 3630, Simulation Time: 203.38 sĮRROR: Numerical Instability - FDS stopped (CHID: SCENARIO_S18) WARNING: Minimum density, 0.117 kg/m3, clipped in Mesh 1 ![]() Time Step: 3600, Simulation Time: 203.14 s Ii have same problem " WARNING: Minimum density, 0.117 kg/m3, clipped in Mesh 1" Please help me how to fix this problem. Thanks to everyone who will reply to this message. I’m using the latest (20) version of Pyrosim to generate the input files. Is it possible that the FDS code was modified in this part as well, and possibly causes that issue? I read the FDS user guide both for version 6.7.5 and 6.7.6 and I noticed two additional chapters in the new release, 7.11.1 and 7.11.2, which I think refer to the error I get. ![]() I can’t figure out why the fire scenarios returns such a high value of gas density. I haven’t found yet someone with the same issue on web or any topic explaining how to solve it correctly. I guess that this error is related with the new version of FDS. I remark that the fire scenarios successfully run weeks ago with the 6.7.5 version of FDS. WARNING: Maximum density, 2.663 kg/m3, clipped in mesh 3. I’m encountering an issue after I updated FDS from version 6.7.5 to 6.7.6.ĭifferent fire scenarios, very different from one another, return the following warning followed by a simulation crash due to numerical instability (the maximum velocity and pressure errors in the. ![]()
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