Multigroup calculations of low energy neutral transport in tokamak plasmas
Multigroup calculations of low energy neutral transport in tokamak plasmas
Multigroup discrete ordinates methods avoid many of the approximations that have been used in previous neutral transport analyses. Of particular interest are the neutral profiles generated as an integral part of larger plasma system simulation codes. To determine the appropriateness of utilizing a particular multigroup code, ANISN, for this purpose, results are compared with the neutral transport module of the Duchs code. For a typical TFTR plasma, predicted neutral densities differ by a maximum factor of three on axis and outfluxes at the plasma boundary by 40%. This is found to be significant for a neutral transport module. Possible sources of the observed discrepancies are indicated from an analysis of the approximations used in the Duchs model. Recommendations are made concerning the future application of the multigroup method.
- National Technical Information Service United States
- University of North Texas United States
Plasma, Plasma Density, Tokamak Type Reactors, Computer Codes, Plasma Sheath, Tokamak Devices 700105* -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Theoretical-- (-1987), Thermonuclear Reactors, 70 Plasma Physics And Fusion Technology, Discrete Ordinate Method, Tftr Device, Transport Theory, Thermonuclear Devices, Closed Plasma Devices
Plasma, Plasma Density, Tokamak Type Reactors, Computer Codes, Plasma Sheath, Tokamak Devices 700105* -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Theoretical-- (-1987), Thermonuclear Reactors, 70 Plasma Physics And Fusion Technology, Discrete Ordinate Method, Tftr Device, Transport Theory, Thermonuclear Devices, Closed Plasma Devices
selected citations These citations are derived from selected sources.This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).0 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average
Citations provided by BIP!Popularity provided by BIP!