A place to ask questions and add to probative and informative discussions associated with the various aspects of the field of fire investigation. -- FORUM RULES---BE CIVIL AND NO NAME CALLING, NO BELITTLING, NO BERATING, NO DENIGRATING others. Postings in violation of these rules can be removed or editted to remove the offending remarks at the discretion of the moderators and/or site administrator.
Re: Computer modeling
Posted by:
J L Mazerat (IP Logged)
Date: September 23, 2020 08:29PM
You hit the point I was trying to make. All fires involve a changing environment. There is a change in the available oxygen for combustion as an example. There is a time when the fire is a fuel dependent fire and then may change into an oxygen dependent fire. Then there is the ventilation factor. When is oxygen introduced and the amount of oxygen being introduced? Is this all part of the calculations of the CFIcalculator? As I said I am in first grade when it comes to fire modeling and there are many things I do not understand. My last question is what is the error rate of the CFIcalculator? Some have said it is as high as 30%.
All I know as a fact is all the testing and investigation that was conducted by NIST in this one fire. There were thousands of manhours involved in them reaching a model that agreed with the video. I am afraid the CFIcalcualtor will be used and the results obtained from maybe as much as 50 manhours conducting all the aspects of the calculations will be presented as being the same quality as what was done by NIST.
Jim Mazerat
Forensic Investigations Group