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Radiation in axisymmetric cylindrical coordinates with the modified discrete-ordinates method
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 Title & Authors
Radiation in axisymmetric cylindrical coordinates with the modified discrete-ordinates method
Kim, Man-Yeong; Baek, Seung-Uk;
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 Abstract
The conventional discrete-ordinates method (DOM) is modified and developed for the analysis of two-dimensional axisymmetric cylindrical enclosure with curved wall. The objective of the present work is to extend the capability of the conventional DOM into a general axisymmetric geometry like nozzle-shaped enclosure, by adopting the arbitrary control angle as was done in the finite-volume method (FVM), while keeping the same two-dimensional solution procedure as in the conventional DOM. The present method is validated by applying it to three different benchmark problems of axisymmetric enclosure containing absorbing, emitting and scattering medium. Results presented in this work not only support the solution accuracy, but also moderate efficiency in the numerical calculation of axisymmetric radiation problem.
 Keywords
Modified Discrete-Ordinated Method;Directional Weight;Axisymmetric Coordinates;Finite-Volume Method;
 Language
Korean
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