Document Perspectives in Radiative Transfer and Interferometry
S. Wolf, F. Allard and Ph. Stee (eds)
EAS Publications Series, 28 (2008) 129-134
DOI: 10.1051/eas:0828018
Radiative Transfer with Finite Differences and Finite Elements
R. WehrseZAH, Institute f. Theoret. Astrophysik, Albert-Überle-Str. 2, 69120 Heidelberg, Germany
(Published online: 22 April 2008)
Abstract
Finite Difference and Finite Element algorithms for the solution of the radiative transfer equation
as required for the modeling of modern high quality observations are briefly described
and discussed. It is emphasized that in the Finite Element approach there is the possibility to obtain an a-posteriori error estimator,
which allows to locally refine the grid and in this way to obtain numerical solutions that do not differ
from the (unknown) analytical solutions by more than a prescribed tolerance.
© EAS, EDP Sciences 2008