- Author
- Takeda, H.
- Title
- Pre-Flashover and Flashover Behavior in Compartment Fires.
- Coporate
- Tokyo Univ., Japan
- Report
- NBSIR 85-3118
- Distribution
- Available from National Technical Information Service
- Book or Conf
- National Bureau of Standards. 7th Joint Panel Meeting of the UJNR Panel on Fire Research and Safety. October 24-28, 1983, Gaithersburg, MD, 153-178 p., ['1983', '1985']
- Keywords
- flashover | compartment fires
- Abstract
- New dimensionless variables and parameters which were satisfied with the scaling effect were introduced into the simple one zone model of compartment fires. The solutions of the new dimensionless model were divided into three kinds of types in response to the "F" number, which was defined as the ratio of the fuel surface area to the floor surface area. When the F number was more than 0.107, no critical phenomena appeared in the diagram of the burning rate and the ventilation parameter. While for F < 0.107, the critical phenomena which included the discontinuous jump appeared in this diagram. But the flashover as a transient phenomenon was not always correspondent to this discontinuous jump. In this paper the possibility of the occurrence of flashover was discussed using the theoretical analysis and some experimental approaches.