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ISSN Online: 2377-424X

ISBN Print: 1-56032-797-9

International Heat Transfer Conference 11
August, 23-28, 1998, Kyongju, Korea

PARALLEL COMPUTING OF PARTICIPATING-MEDIA RADIATIVE HEAT TRANSFER

Get access (open in a dialog) DOI: 10.1615/IHTC11.4580
pages 481-486

要約

A strategy for parallel computing of participating-media radiative heat transfer is to divide the spectrum of interest into different wavelength bands and perform the individual band calculations in parallel using multiple computers or processors. A recently developed selective spectral discretization method has been incorporated into a finite-element computer code named "MYST". The new discretization model automatically adjusts the radiation bandwidths and assigns more but narrower bands to regions where there is strong spectral variation. In MYST, the spectral three-dimensional radiative transfer equation expressed in a second-order even-parity/first-order odd parity form is solved using a discrete ordinates method. Spatial discretization uses unstructured tetrahedral finite-element meshes. The present paper is to present the results of a parallel computing analysis using MYST and the selective selective spectral discretization model. The parallel platform used consists of five networked UNIX workstations. Data transfer between the workstations is achieved with the help of the Parallel Virtual Machine system software. The parallel computing performance is presented for a rectangular enclosure containing a mixture of spherical carbon particles, gaseous CO2 and N2.