- Author
- Parker, W. J. | Corlett, R. C. | Lee, B. T.
- Title
- Experimental Test of Mass Fire Scaling Principles.
- Coporate
- Naval Radiological Defense Laboratory, San Francisco, CA
- Sponsor
- Office of Civil Defense, Washington, DC
- Report
- NRDL-TR-68-117, December 27, 1968, 45 p.
- Distribution
- Available from National Technical Information Service
- Keywords
- mass fires | scaling | temperature distribution | Flambeau operation | Grashof number | combustion | vorticity | scaling laws | smoke | air temperature | velocity
- Identifiers
- velocities - inflow and updraft
- Abstract
- Electrical models based on partial scaling principles neglecting molecular transport parameters (as characterized, for example, by a Grashof number Gr), have been built at NRDL to scale the gross flow features of a mass fire down to laboratory size. The scaling rules require that the model be geometrically similar to the prototype, and that heat release rate per unit area be scaled as the square root of the characteristic horizontal dimension L. To the extent that these principles are valid, gas temperatures will be the same, and velocity scales as L 1/2, at homologous points of model and prototype flow fields.