抄録
Flame is one of the clear index to estimate fire severity and to assess the fire safety for buildings. Basic flame behavior from a single fire source is described based on the Froude modeling which is established in the dimensionless form of Lf/D ∝ Q*2/(2n+3) taking n=1 for a line fire and n=2 for a square fire souce. For multi fire sources, not only a flame extension but also flame merging behavior is described based on experimental observation. Flame extension behavior in and near a 90° corner was also modeled as fire source approaching a corner or moving toward a wall. Flame from vertical distributed goods, such as rack stored goods, flame showed intermediate behavior taking n=1.5 for the relation of Lf/D ∝ Q*2/(2n+3). A modeling for flame extension along a wall is also described as the base part of a wall burning. These equations are useful to estimate the fire propagation for various situations of fires.
