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| View an Animation |
| A picture is worth a 1000 words... |
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A sample of animation produced by our experts using CFM data. |
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| Fire Investigation Services |
| Complete & Thorough... |
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Kennedy & Associates can address all aspects of your fire and explosion investigation from start to finish. |
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John A. Kennedy and Associates is one of the few firms to consistently use computer fire models and have that work accepted with expert testimony. It is a very specialized and complex analysis method which can not be done by someone without the proper education and training. We regularly give expert deposition and trial testimony in the use of computer fire modeling for fire investigation purposes. We recognize the great importance of model verification and make extensive use of experimental results and literature data to verify the appropriateness and accuracy of our models.
 Computer fire modeling is a way to mathematically predict conditions within compartments. Based on actual full scale fire tests, Computer Fire Models have been extensively validated, and are accepted in courts as a tool of the fire expert.
John A. Kennedy and Associates maintains an up-to-date inventory of fire dynamics computer modeling software. We use of a wide range of fire models including zone models (e.g. CFAST & BRANZfire), field models (e.g. Fire Dynamics Simulator-FDS), and specialized models for movement of smoke and other contaminants (e.g. ASET-B). We have successfully used these models to show and reconstruct how incident fires grow and spread in buildings, to predict time to flashover, to predict time to smoke detector activation, to predict escape times, to predict survivability and other important parameters.
Kennedy and Associates can produce detailed mathematical computer models and animations of fire behavior. Many of the computer fire models can predict:
 Room Fire Temperatures
Radiant Ignition of Fuels
Time to Flashover
Production of Fire Gases
Occupant Egress Time
Time to Activation of Smoke Detectors and Sprinklers
Zone Models
Zone Models simplify the room into two different layers (an upper and lower) that can mathematically predict conditions such as temperature, smoke layer development, smoke concentration, toxic gas (CO, CO2) concentration, smoke and fire spread. (FAST, CFAST, BRANZfire).
Computational Fluid Dynamics (CFD) or Field Models
These state-of-the-art modeling programs separate the compartment into thousands of tiny cells. Each cell is then mathematically calculated to produce the most accurate prediction of the fire conditions. Temperature, velocity, and gas concentrations are calculated as 3-D fields. These calculated predictions are then converted into computer animations representing the fire conditions.
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