Numerical Modeling of Radiative Heat Transfer in Water Sprays.
Numerical Modeling of Radiative Heat Transfer in Water
Hostikka, S.; McGrattan, K. B.
Fire Safety Journal, Vol. 41, No. 1, 76-86, February
water sprays; radiative heat transfer; droplet6s;
absorption; scenarios; equations; computational fluid
dynamics; experiments; nozzles; sprays; fire models
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.