Ray Casting and Flux Limited Diffusion

Details Ray Casting and Flux Limited Diffusion Ray Casting and Flux Limited Diffusion

Apr 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011iaus..270..207n&link_type=abstract

Computational Star Formation, Proceedings of the International Astronomical Union, IAU Symposium, Volume 270, p. 207-214

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Solving radiative transfer problems with ray casting methods is compared with the commonly used `Flux Limited Diffusion' approximation. Whereas ray casting produces solutions that converge to the exact one as the number of rays is increased, flux-limited-diffusion is fundamentally a `look-alike' method, which produces solutions that are reminiscent of the correct solution but which cannot be made to converge to it.

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