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Fusion Science and Technology
Latest News
In transition: Commercializing fusion power
Commercial fusion power is closer than ever. There are now around 30 U.S. fusion companies, several of which claim to be on track to connect to the grid as early as the 2030s.
Tokamak and laser inertial confinement approaches benefit from decades of research at facilities such as the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory and ITER, with alternative concepts including stellarator, magnetic mirror, and Z-pinch confinement also making notable progress as private and government funding for fusion increases.
John Greenstadt
Nuclear Science and Engineering | Volume 82 | Number 1 | September 1982 | Pages 78-95
Technical Paper | doi.org/10.13182/NSE82-A19030
Articles are hosted by Taylor and Francis Online.
The application of the cell discretization (CD) method to a class of nuclear reactor problems is described. The CD method is based on partitioning the domain in which the diffusion equations are to be solved into a set of subdomains, or “cells.” This approach, which resembles that used in the finite element method, nevertheless differs from it in certain important respects, some of which are mentioned in the course of describing CD. A FORTRAN program has been written that implements many of the features of the CD method, but is restricted to rectangular geometry. Several representative problems from the literature are solved numerically with CD, and the results are compared with the published ones. The central processor unit times are given for solution of these problems on the IBM 370/158 under VM, a time-sharing system. All results, including keff, peak-to-average-power ratios, integrated fluxes, etc. are listed in tables in such a way as to make comparison convenient. Flux plots are also shown for those cases where they were given in the literature.
