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Fire Simulation with 200 Meter Hill

Building upon the 1997 experiments, this simulation prescribed similar fuels (dry eucalyptus) but with the addition of a 200 meter hill. Upslope winds drive the fire spread. This research was conducted under sponsorship of the National Science Foundation and the U.S. Forest Service.

     
     

Enstrophy & Buoyancy

 

Temperature Field & Enstrophy

     

Green and dark brown regions depict unburnt and burnt fuel, respectively. Rotational and turbulence features (enstrophy) are shown as a transparent blue isosurface at a level of .1, while the hot temperature surface (buoyancy) at 2° C is shown in red.

 

The white-to-red structure shows the temperature field, with white colors associated with the hottest areas. The turquoise field represents enstrophy, which is a measure of rotation and often used to study the turbulent characteristics of a flow field. Note the two small "backfires" behind the main fire front.

     
     
Related Links
 


  Fire Simulation with Flat Terrain

  Fire Shape, Whirls & Bursts

  Big Elk Fire Simulation

  MetEd Fire Weather Training Modules

 
 
   
   
Model  
Model Name:
Clark Fire Model, WBC565M65PR2
Data  
Data Size:
Raw ~20 GB, subsetted to ~7 GB for Vis5D
Time Evolution:
1 hour
Time Resolution:
5 seconds
Timesteps:
716
Domain  
Horizontal Real World:
1.6 x 1.6 km
Horizontal Resolution:
84 x 84
Vertical Real World:
4.4 km
Vertical Resolution:
160 irregular
Visualization  
Visualization:
Don Middleton, NCAR/SCD/VETS
Software:
Vis5D, Persistence of Vision (POV) raytracer
Hardware:
128-processor SGI Origin
CPU Time:
300 hours
Project
Scientists:
Terry Clark, NCAR/MMM
Janice Coen, NCAR/MMM
Date Created:
1998
Date Catalogued:
2002-08-12
Rights:
© 2002, UCAR, All rights reserved.