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A faster algorithm for smoothed particle hydrodynamics with radiative transfer in the flux-limited diffusion approximation
Article first published online: 15 NOV 2005
DOI: 10.1111/j.1365-2966.2005.09683.x
Issue
Monthly Notices of the Royal Astronomical Society
Volume 364, Issue 4, pages 1367–1377, December 2005
Additional Information
How to Cite
Whitehouse, S. C., Bate, M. R. and Monaghan, J. J. (2005), A faster algorithm for smoothed particle hydrodynamics with radiative transfer in the flux-limited diffusion approximation. Monthly Notices of the Royal Astronomical Society, 364: 1367–1377. doi: 10.1111/j.1365-2966.2005.09683.x
Publication History
- Issue published online: 21 NOV 2005
- Article first published online: 15 NOV 2005
- Accepted 2005 September 27. Received 2005 August 10; in original form 2005 June 27
- Abstract
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Keywords:
- hydrodynamics;
- radiative transfer;
- methods: numerical
ABSTRACT
We describe a new, faster implicit algorithm for solving the radiation hydrodynamics equations in the flux-limited diffusion approximation for smoothed particle hydrodynamics. This improves on the method elucidated in Whitehouse and Bate by using a Gauss–Seidel iterative method rather than iterating over the exchange of energy between pairs of particles. The new algorithm is typically many thousands of times faster than the old one, which will enable more complex problems to be solved. The new algorithm is tested using the same tests performed by Turner and Stone for zeus-2d, and repeated by Whitehouse and Bate.