This paper deals with finding accurate solutions for photon transport problems in highly heterogeneous media fastly, efficiently and with modest memory resources. We propose an extended version of the Analytical Discrete Ordinates method, coupled with domain decomposition-derived algorithms and non-linear convergence acceleration techniques. Numerical performances are evaluated using a challenging case study available in the literature. A study of accuracy versus computational time and memory requirements is reported for transport calculations that are relevant for remote sensing applications.
A. Previti, R. Furfaro, P. Picca, B.D. Ganapol, D. Mostacci (2011). Solving radiative transfer problems in highly heterogeneous media via domain decomposition and convergence acceleration techniques. APPLIED RADIATION AND ISOTOPES, 69(8), 1146-1150 [10.1016/j.apradiso.2010.11.016].
Solving radiative transfer problems in highly heterogeneous media via domain decomposition and convergence acceleration techniques
PREVITI, ALBERTO;MOSTACCI, DOMIZIANO
2011
Abstract
This paper deals with finding accurate solutions for photon transport problems in highly heterogeneous media fastly, efficiently and with modest memory resources. We propose an extended version of the Analytical Discrete Ordinates method, coupled with domain decomposition-derived algorithms and non-linear convergence acceleration techniques. Numerical performances are evaluated using a challenging case study available in the literature. A study of accuracy versus computational time and memory requirements is reported for transport calculations that are relevant for remote sensing applications.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
