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Fire Dynamics Simulator
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Can FDS+Evac run with Creating and Removing Obstructions Logic ? #1588

Closed gforney closed 9 years ago

gforney commented 9 years ago 
Please complete the following lines...

Application Version:5.5.3 Serial
SVN Revision Number:7031
Compile Date:Fri, 29 Oct 2010
Operating System:Windows 7 32bit

Describe details of the issue below:

hi, my case is people evacuation in cinema,

1.the data (m11h-FU-Vt.txt) can run
  but after add :

&OBST XB=13,14,4,4.2,3.2,3.6,DEVC_ID=ft1,COLOR='INVISIBLE'/ 
&OBST XB=13,14,7.8,8,3.2,3.6,DEVC_ID=ft1,COLOR='INVISIBLE'/         
&DEVC XYZ=0.4,0.4,0.4,ID=ft1,QUANTITY='TIME',INITIAL_STATE=.TRUE. 
      ,SETPOINT=1/

than it will caus 'access violation'  at the SETPOINT=1 .(see 1.png)

2.than i delete all Evac line , the data (m11h-FU-Vt2.txt) have 

&OBST XB=13,14,4,4.2,3.2,3.6,DEVC_ID=ft1,COLOR='INVISIBLE'/ 
&OBST XB=13,14,7.8,8,3.2,3.6,DEVC_ID=ft1,COLOR='INVISIBLE'/         
&DEVC XYZ=0.4,0.4,0.4,ID=ft1,QUANTITY='TIME',INITIAL_STATE=.TRUE. 
      ,SETPOINT=1/

can run,too.

my probiem is can creating and removing obstructions Logic (from Guide 13.4.1) use
in the FDS+Evac simulator ?

thank you

Original issue reported on code.google.com by pumgolin on 2012-04-18 09:47:29

gforney commented 9 years ago 
Timo will take a look at this.

Original issue reported on code.google.com by mcgratta on 2012-04-18 11:55:13

gforney commented 9 years ago 
Well, I'll look at this. The evacuation meshes should not
have removable obstacles. Well, they could have those but
the results might not be too good for some cases. The 
evacuation flow fields are calculated the initial obstacles
that are present at time zero (or whatever T_BEGIN).

But I'll check where the error comes.

TimoK

Original issue reported on code.google.com by tkorhon1 on 2012-04-18 12:38:30

gforney commented 9 years ago 
Well add EVACUATION=.FALSE. to the OBST lines:

&OBST XB=13,14,4,4.2,3.2,3.6,DEVC_ID='ft1',COLOR='INVISIBLE',EVACUATION=.FALSE./    
&OBST XB=13,14,7.8,8,3.2,3.6,DEVC_ID='ft1',COLOR='INVISIBLE',EVACUATION=.FALSE./
&DEVC XYZ=0.4,0.4,0.4,ID='ft1',QUANTITY='TIME',INITIAL_STATE=.TRUE. 
      ,SETPOINT=1/

Then it should run. If you need these obstructions in the evacuation
geometry, copy these and set EVACUATION=.TRUE. and take the
DEVC_ID away.

The present source code treats DEVCs etc better than 5.5.3.
But still the evacuation meshes should not have time dependent
obstacles.

TimoK

Original issue reported on code.google.com by tkorhon1 on 2012-04-18 12:56:45

gforney commented 9 years ago 
Thank you for your kindly explanation.

Original issue reported on code.google.com by pumgolin on 2012-04-19 08:29:19

gforney commented 9 years ago 
Well, this Issue was solved with additional keywords.
The FDS 6 based evacuation is not having this problem
anymore. One should, perhaps, write "Known_Issues.txt"
file to the FDS+Evac (fds5.5.3 based) web page that 
would list these kind of "tricks" that can be used.
This would also contain some Smokeview + Evacuation
related quite common questions (see the Discussion 
Forum...), like exterior surfaces, editing the .smv
files. Well, some kind of FAQ-file...

Now this issue has status "AltInputs", so it is closed.

TimoK

Original issue reported on code.google.com by tkorhon1 on 2012-04-19 12:42:54