- Author
- Hostikka, S. | McGrattan, K. B.
- Title
- Numerical Modeling of Radiative Heat Transfer in Water Sprays.
- Coporate
- VTT-Technical Research Center of Finland, Espoo National Institute of Standards and Technology, Gaithersburg, MD
- Journal
- Fire Safety Journal, Vol. 41, No. 1, 76-86, February 2006
- Keywords
- water sprays | radiative heat transfer | droplet6s | absorption | scenarios | equations | computational fluid dynamics | experiments | nozzles | sprays | fire models
- Identifiers
- Large-Eddy Simulation (LES); Fire Dynamics Simulator (FDS); scattering calculation; Lagrangian droplets; limits of the spectral bands for a 6-band model; boundary conditions of the A, B and D nozzles; boundary conditions of the TG03 spray droplets; results of the TG03 spray simulation; numerical solution of RTE
- Abstract
- A numerical method is developed for the transport of polychromatic radiation in polydisperse sprays. The method is implemented within a wide-band radiation solver using the Finite Volume Method. Mie theory is used to compute the absorption and scattering characteristics of the water droplets. The solver is designed to be computationally effective because the simulations of fire scenarios are inherently time-dependent and the radiative transport equation must be solved many times. The model is compared with two sets of experimental data, and a discussion of the results is presented.