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 on: May 28, 2019, 05:05:04 am 
Started by marco.furlanis - Last post by bkdroid13
The simulation caches the information in the temporary files during the scan. Constantly create and delete such files. Sometimes, another program tries to read the cache file when the simulation tries to access it. Windows denies your access request because the file is in use. The programs that can read the cache file are Windows indexing, an antivirus program, disk compression or backup software.

 on: May 23, 2019, 01:29:03 am 
Started by marco.furlanis - Last post by marco.furlanis
Hello everybody,

i am using FDS 6.7.0 via Pyrosim (rev 2018.3.1210).
During the last simulation, the following error occurred few minutes before the end of simulation.

Does anybody of you have already seen this kind of error?
I am not an expert, but it seems my network connection was lost for a while..
Thanks a lot in advance.


Time Step:  96600, Simulation Time:   2354.80 s
forrtl: Errore di rete imprevisto.

forrtl: severe (38): error during write, unit 6, file L:\Mec_Marine\Land_plant\Archivio_Clienti\Unikolegno\P18_0035_Mob_Vittoria_Prev_Inc\Progettazione\Calcoli\VVF\FSE\Unikolegno_ValProg_FSE_Rev1_2019_04_12\Unikolegno_ValProg_FSE_Rev1_2019_04_12.out
Image              PC                Routine            Line        Source             
fds.exe            00007FF61ED4E507  Unknown               Unknown  Unknown
fds.exe            00007FF61ED14824  Unknown               Unknown  Unknown
fds.exe            00007FF626C77859  Unknown               Unknown  Unknown
fds.exe            00007FF62643CC61  MAIN__                    830  main.f90
fds.exe            00007FF626428632  Unknown               Unknown  Unknown
fds.exe            00007FF626D37A80  Unknown               Unknown  Unknown
KERNEL32.DLL       00007FFF3B107974  Unknown               Unknown  Unknown
ntdll.dll          00007FFF3C0EA271  Unknown               Unknown  Unknown

 on: May 20, 2019, 06:15:03 am 
Started by RBlythin - Last post by RBlythin

I have modelled a building with an atrium. The aim of the model is to produce smoke which rises above the atrium, but there are a few errors with my modelling on Pyrosim.

I've attached the FDS coding for this.

How do I move the OPEN VENTs to the mesh boundaries?

 on: May 19, 2019, 12:25:41 pm 
Started by RBlythin - Last post by RBlythin

I have just modelled a building containing an atrium which is meant to generate smoke when viewed in SmokeView. I just opened Pyrosim and SmokeView, but nothing appears.

I've attached a screenshot of the model in Pyrosim.

Does anybody know what this means?

 on: May 17, 2019, 04:40:04 am 
Started by Caterina - Last post by Caterina
Hi everyone!
i have some problem when importing a particular .dwg file in Pathfinder. I can't see all the lines that i have in the dwg, and the lines i see are in the wrong place, in some cases.
I tried to change Autocad version in saving the file, and also to pass from .dwg to .dxf, without changes. I tried with other dwg and everything is ok, so i think it is a probelm of the file.
Can you suggest me something else to solve the problem?
Thank you! :)

 on: May 16, 2019, 10:00:59 am 
Started by RBlythin - Last post by jharbold
How big is your burner going to be?

HRRPUA = HRR per unit area

HRRPUA = 2500 kW / area of the burner

 on: May 16, 2019, 07:39:42 am 
Started by RBlythin - Last post by RBlythin

I'm modelling a building with an atrium. The atrium is 12m in length, 15m in width, and 9m in height. Height of each floor is 3m. There are 1.6 m wide walkways around the atrium at 3m and 6m high levels.

The fire needs to be medium-type of 2.5Mw (2500Kw), how would you calculate the HRRPUA ,please?

 on: May 16, 2019, 07:34:25 am 
Started by RBlythin - Last post by RBlythin
Okay, thanks for letting me know.

 on: May 10, 2019, 06:28:59 am 
Started by RBlythin - Last post by Timo
Under "Edit Reaction" there is a tab "Byproducts" where you can set the soot yield.
Obviously you need to choose a reaction first.

 on: May 09, 2019, 09:07:36 am 
Started by Helene - Last post by Helene
I have created little volumes of particle clouds (massless tracer) in front of each HVAC vents (17 in total). Works beautifully, just like tracer from supply vents. It seems to be doing the same job. Thanks again!

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