- Author
- Zukoski, E. E. | Kubota, T.
- Title
- Computer Model for Fluid Dynamic Aspects of a Transient Fire in a Two Room Structure. 2nd Edition.
- Coporate
- California Instute of Technology, Pasadena
- Sponsor
- National Bureau of Standards, Gaithersburg, MD
- Contract
- NBS-GRANT-NO-5-9004
- Keywords
- fluid dynamics | computer models | room fires | combustion | ceilings | floors | combustion products | fire plumes | fire growth | heat transfer
- Identifiers
- uncontaminated air; orifice flows
- Abstract
- A computer model which treats the fluid dynamic aspects of a transient fire in a two room structure is described. In the model, the gas in each room is divided into two regions of uniform density: A ceiling layer which contains hot products of combustion, and a layer next to the floor which contains uncontaminated air. The fire plume entrains this fresh air, mixes it with hot combustion products and transmits it to the ceiling layer. Flow through openings is described by a calculation similar to that used for orifice flows. Fire growth, heat transfer to the walls and other important features of a fire are described by ad hoc selection of parameters. The thickness and temperature of the ceiling layers and the rate of flow of hot and cold air through openings are calculated as a function of the time.