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Two 3D Fokker-Planck codes which calculate distribution functions in velocity and real space allowing for particle trapping, collisions, heating and radial transport in axisymmetric tokamaks, are described. The first, BANDIT-3D, is used mainly for calculating the influence of RF heating on the electron distribution and uses a two stage operator splitting algorithm. The second, FPP-3D, is currently being developed and uses a two cycle, six stage operator splitting algorithm to solve for neoclassical particle distributions. These algorithms are found to be efficient and robust, allowing solution of 3D Fokker-Planck equations in modest CPU times on both a CRAY-2 supercomputer and high performance workstations.

Additional information

Authors: O'BRIEN M R, AEA Fusion, Culham Laboratory, Abingdon, Oxon. (GB);COX M, AEA Fusion, Culham Laboratory, Abingdon, Oxon. (GB);WARRICK C D, AEA Fusion, Culham Laboratory, Abingdon, Oxon. (GB);ZAITSEV F S, Moscow State University (SU)
Bibliographic Reference: Report: JET-P(92)42 EN (1992) 10 pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199211289 / Last updated on: 1994-11-29
Original language: en
Available languages: en
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