A Discrete-Ordinate Discontinuous-Streamline Diffusion Method for the Radiative Transfer Equation

A Discrete-Ordinate Discontinuous-Streamline Diffusion Method for the Radiative Transfer Equation

Year:    2016

Communications in Computational Physics, Vol. 20 (2016), Iss. 5 : pp. 1443–1465

Abstract

The radiative transfer equation (RTE) arises in many different areas of science and engineering. In this paper, we propose and investigate a discrete-ordinate discontinuous-streamline diffusion (DODSD) method for solving the RTE, which is a combination of the discrete-ordinate technique and the discontinuous-streamline diffusion method. Different from the discrete-ordinate discontinuous Galerkin (DODG) method for the RTE, an artificial diffusion parameter is added to the test functions in the spatial discretization. Stability and error estimates in certain norms are proved. Numerical results show that the proposed method can lead to a more accurate approximation in comparison with the DODG method.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/cicp.310715.290316a

Communications in Computational Physics, Vol. 20 (2016), Iss. 5 : pp. 1443–1465

Published online:    2016-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    23

Keywords: