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atwhaley / cfast

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Q1. No running when additional property was added to thermal.csv; Q2. Which one is my target result at CHID.w output file #54

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
CFAST version : 6.1.1.54
OS : window XP

Q1. No running of CFAST when I added my own material property as target
   - at Targets of CEdit, I added a material with properties, such as 
density, heat conductiviy, heat capacity, and thickness.
   - after my input of 1200 sec simulation, I ran the program but it 
stopped all of sudden.
   - If I change the default targets that are included the program, it 
works up to 1200 second.
   - What is wrong in my input?
  * please look at the PVC that was added by myself at attached 
thermal.xls file

Q2. I installed two targets at CEdit. Now CHID.out and CHID.w shows 3 or 4 
target outputs. Which data output is corresponding to my target #1 and #2?
   - I installed my targets #1 and #2.
   - after running, the CHID.out shows target #1, #2, #3, and #4 that are 
my target #1, my target #2, fire source, concrete respectively.
   - then, I open CHID.w output file, the result shows compartment 
outputs, target #1 outputs, target #2 outputs, and target #3 outputs.
   - my question is that the target #1 and #2 outputs at CHID.out are 
target #1 and #2 outputs at CHID.w?

   * please look at the CHID.out and CHID.w for target numbers.

Q3. Is there any limitation for more than 10 ACH (air change rate per 
hour)? I ususally get warning message when th ACH is larger than 10.

Original issue reported on code.google.com by jmh...@gmail.com on 15 Feb 2010 at 2:33

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GoogleCodeExporter commented 9 years ago 
I would appreciate some comments for my questions above.

Original comment by jmh...@gmail.com on 18 Feb 2010 at 5:02

GoogleCodeExporter commented 9 years ago 
This site is for the code development of CFAST.  For operational questions, 
please submit your question to the 
CFAST discussion group at http://groups.google.com/group/cfast.

The first two targets are the ones you added.  In addition, CFAST adds a target 
for each fire object and one at 
the center of floor of each compartment in the simulation.  The easiest way to 
tell which targets are which is to 
look at the printed output file where it lists details for each target in 
"numerical" order.

There are many reasons why a CFAST run may fail.  For targets, you may have to 
select a different solution 
type (PDE/ODE/STEADY) to allow the solution to converge.  When you add a 
material to the thermal properties 
database, CFAST may lose details of selected materials for other targets or for 
the wall surfaces.  Examine all 
of these carefully to see if they are correct before rerunning the model 
simulation.

Original comment by cfastdev@gmail.com on 22 Feb 2010 at 2:59

GoogleCodeExporter commented 9 years ago 
Thanks, I will look at it.

Original comment by jmh...@gmail.com on 4 Mar 2010 at 11:36