Study of Fire Spread Formula of Forest.

Abstract

(1) The fire spread formula of forest of Kure city with 230.000 persons is shown by the following equation (1).
   A＝(0.34σ +0.26υ+0.23)x^1.34      (1)
A : burned area (a), x : time (min), υ: wind velocity (m/sec), σ : standard deviation
(2) The formula of number of firemen for forest fire of Kure city is shown by,
   P＝9.84 A^0.430            (6)
P : number of fire men for forest fire
(3) The formula of number of fire engines for forest fire of Kure city is shown by,
   P_f＝1.95 A^0.344            (7)
P_f : number of fire engines for forest fire