Point-source fire

n. An elliptical fire burning in a uniform fire environment.

 

  • Discussion

 

Most fires start at an ignition point and spread, initially, in a roughly elliptical shape. The behavior of different parts of such a fire can be predicted from the mathematical properties of an ellipse. Once a fire has spread into a different fire environment or if the fire environment has changed temporally it can no longer be considered point-source. In such cases, fire modeling is accomplished by treating the fire perimeter as a series of point-source fires, each in its own uniform fire environment.