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A New Spherical Harmonics Scheme for Multi-Dimensional Radiation Transport I: Static Matter Configurations

Radice, David and Abdikamalov, Ernazar and Rezzolla, Luciano and Ott, Christian D. (2013) A New Spherical Harmonics Scheme for Multi-Dimensional Radiation Transport I: Static Matter Configurations. Journal of Computational Physics, 242 . pp. 648-669. ISSN 0021-9991. http://resolver.caltech.edu/CaltechAUTHORS:20130212-111657555

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Abstract

Recent work by McClarren and Hauck (2010) [31] suggests that the filtered spherical harmonics method represents an efficient, robust, and accurate method for radiation transport, at least in the two-dimensional (2D) case. We extend their work to the threedimensional (3D) case and find that all of the advantages of the filtering approach identified in 2D are present also in the 3D case. We reformulate the filter operation in a way that is independent of the timestep and of the spatial discretization. We also explore different second- and fourth-order filters and find that the second-order ones yield significantly better results. Overall, our findings suggest that the filtered spherical harmonics approach represents a very promising method for 3D radiation transport calculations.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://arxiv.org/abs/1209.1634v2arXivUNSPECIFIED
http://dx.doi.org/10.1016/j.jcp.2013.01.048DOIUNSPECIFIED
http://www.sciencedirect.com/science/article/pii/S0021999113001125PublisherUNSPECIFIED
Additional Information:© 2013 Elsevier Inc. Received 7 September 2012; Received in revised form 21 January 2013; Accepted 23 January 2013; Available online 24 February 2013. We are happy to acknowledge helpful exchanges with Adam Burrows, Filippo Galeazzi, Cory D. Hauck, Ryan G. McClarren, Christian Reisswig and Erik Schnetter. This work was supported in part by NSF under Grant N. AST-0855535, OCI-0905046, by the Sherman Fairchild Foundation and the Alfred P. Sloan Foundation, by the DFG Grant SFB/Transregio 7, and by ‘‘Comp- Star’’ a Research Networking Programme of the European Science Foundation. Results presented in this article were obtained through computations on the AEI computer cluster ‘‘Datura’’, on machines of the Louisiana Optical Network Initiative under Grant loni_numrel07, on the Caltech compute cluster ‘‘Zwicky’’ (NSF MRI award No. PHY-0960291), on the NSF XSEDE network under computer time Grant TG-PHY100033, and at the National Energy Research Scientific Computing Center (NERSC), which is supported by the Office of Science of the US Department of Energy under contract DE-AC03-76SF00098. This work was initiated at the MICRA workshop at the Perimeter Institute in 2011.
Group:TAPIR
Funders:
Funding AgencyGrant Number
NSFAST-0855535
NSFOCI-0905046
Sherman Fairchild FoundationUNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
DFG Grant SFB/Transregio 7UNSPECIFIED
European Science Foundation ‘‘CompStar’’ Research Networking Programme UNSPECIFIED
NSF MRIPHY-0960291
NSF XSEDE networkTG-PHY100033
National Energy Research Scientific Computing Center (NERSC)UNSPECIFIED
Department of Energy (DOE) Office of ScienceDE-AC03-76SF00098
Subject Keywords:Radiation transport; P N -method; Asymptotic diffusion limit; Discontinuous Galerkin
Record Number:CaltechAUTHORS:20130212-111657555
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20130212-111657555
Official Citation:David Radice, Ernazar Abdikamalov, Luciano Rezzolla, Christian D. Ott, A new spherical harmonics scheme for multi-dimensional radiation transport I. Static matter configurations, Journal of Computational Physics, Volume 242, 1 June 2013, Pages 648-669, ISSN 0021-9991, http://dx.doi.org/10.1016/j.jcp.2013.01.048.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36875
Collection:CaltechAUTHORS
Deposited By: JoAnn Boyd
Deposited On:13 Feb 2013 19:38
Last Modified:28 Jun 2013 23:11

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