A SYNTHETIC ACCELERATION METHOD FOR DISCRETE ORDINATES CALCULATIONS WITH HIGHLY ANISOTROPIC SCATTERING Academic Article

abstract

• Alcouffe's diffusion-synthetic acceleration scheme for one-dimensional discrete ordinates calculations is extended to accelerate both the zero'th and first moments of the scattering source. The extended scheme is found to be significantly more effective than the standard scheme for problems with highly forward-peaked scattering. A new diffusion theory is derived directly from the discrete ordinates equations, which varies from the standard theory only in the definition of the diffusion coefficient. When employed in the standard diffusion-synthetic acceleration scheme, the new theory is found to perform slightly better than the standard diffusion theory.

authors

• Morel, Jim

published proceedings

• NUCLEAR SCIENCE AND ENGINEERING

author list (cited authors)

• MOREL, J. E.

citation count

• 41

complete list of authors

• MOREL, JE

publication date

• September 1982

publisher

• Taylor & Francis  Publisher

published in

• Nuclear Science and Engineering  Journal

keywords

• 40 Engineering
• 4006 Communications Engineering

Digital Object Identifier (DOI)

• 10.13182/NSE82-A19026

start page

• 34

end page

• 46

volume

• 82

issue

• 1

URL

• http://dx.doi.org/10.13182/nse82-a19026