An assessment of techniques for predicting radiation transfer in aqueous media

Autor: W.G. Houf, F.P. Incropera
Rok vydání: 1980
Předmět:
Zdroj: Journal of Quantitative Spectroscopy and Radiative Transfer. 23:101-115
ISSN: 0022-4073
DOI: 10.1016/s0022-4073(80)80009-4
Popis: Five methods of determining radiative transfer in aqueous suspensions have been compared on the basis of their ability to predict radiative flux and absorption profiles within the suspension, as well as overall absorption and reflection by the suspension. They include the forward scattering technique, the delta-Eddington method, a three-flux technique, the six-flux model, and the more rigorous method of discrete ordinates. Calculations have been performed for a planar aqueous suspension over a wide range of independent parameters which include the scattering albedo, bottom reflectance, overall optical depth, and directional distribution of the incident radiation. Reasonable agreement is obtained between the three-flux, six-flux and discrete ordinate results for the range of conditions. In contrast suspension absorption effects are consistently underpredicted and overpredicted, respectively, by the forward scattering and delta-Eddington methods.
Databáze: OpenAIRE