Numerical Modeling of Radiative Heat Transfer in Water Sprays.
Numerical Modeling of Radiative Heat Transfer in Water
Sprays.
(290 K)
Hostikka, S.; McGrattan, K. B.
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
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.
Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899