3-D Comparative Behavior Of Discrete Transfer And Imaginary Planes Methods For Furnace Modeling
CANADIAN JOURNAL OF CHEMICAL ENGINEERING(1992)
Abstract
The discrete transfer and imaginary planes methods are compared for accuracy and computation time in cartesian and cylindrical enclosures filled with grey gas. The reference solutions are given by the classical zone method. Comparisons are done for surface heat fluxes and gas radiative sources. A wide range of surface emissivities and gas absorption coefficients is analysed. In general, the discrete transfer method reveals superior for accuracy but consumes more computation time. The imaginary planes method loses accuracy when a high number of spatial divisions is used, however it is easy to apply.
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Key words
RADIATIVE HEAT TRANSFER, DISCRETE TRANSFER METHOD, IMAGINARY PLANES METHOD
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