On radiative transfer in water spray curtains using the discrete ordinates method

A numerical study of water mist mitigation of tunnel fires

“…As shown by Collin et al [27] for radiative heat transfer in water curtains, the use of the SMR to characterize the whole size distribution allows the computational time required for integration to be significantly reduced, with discrepancies of less than 0:5% on spectral transmittivities. The Planck mean efficiencies and scattering phase function are given by [28] Q ext ¼ …”

Absorptance and transmittance of water spray/mist curtains

“…Its aim is not to model flame dynamics and the interaction of radiation with water droplets in the spray, but to model and calculate the spectral absorptances and transmittances of a plane layer (sheet of finite thickness) of water droplets, which is called a water spray curtain in the literature [7,8]. The presence of gaseous radiating species (i.e., H 2 O, CO 2 , CO, etc.)…”

“…The reason for this appears to be the fact that while the evaluation of the spectral attenuation coefficient and single scattering albedo from the Mie theory is straightforward, the calculations are very tedious. Only recently have some studies [6][7][8] of refraction data of water to calculate the spectral radiation characteristics of water droplets.…”

A simplified model for the shielding of fire thermal radiation by water mists

“…More detailed description of radiative transfer based on the Discrete Ordinates Method (DOM), Finite Volume Method and even Monte Carlo simulation were also used in computational studies of water mists [11][12][13][14][15][16][17]. Some of these studies have coupled the radiation, heat, mass and momentum transfer in sprays using the combined Eulerian-Lagrangian approach for both dynamic and thermal non-equilibrium of droplets and ambient gas.…”