Systematic calibration of a theory-based transport model of tokamak plasmas
Kinsey, Jonathan Edward
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https://hdl.handle.net/2142/22354
Description
Title
Systematic calibration of a theory-based transport model of tokamak plasmas
Author(s)
Kinsey, Jonathan Edward
Issue Date
1995
Doctoral Committee Chair(s)
Singer, Clifford E.
Department of Study
Nuclear, Plasma, and Radiological Engineering
Discipline
Nuclear, Plasma, and Radiological Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Nuclear
Physics, Fluid and Plasma
Language
eng
Abstract
A time-dependent theoretical model of flux-surface-averaged radial transport in tokamaks has been constructed and calibrated against a well documented set of temperature and density profiles from a pre-defined set of twelve discharges from seven different tokamaks. The transport theory includes neoclassical, $\rm drift/\eta\sb{i},$ circulating electron mode, kinetic ballooning, neoclassical magnetohydrodynamic (MHD), and resistive ballooning effects. An important feature of this study is a reproducible simulation methodology and a systematic statistical prescription for comparing theory against experiment. Optimization of the model is conducted using a simple maximum likelihood method to minimize quantitative differences between theoretical predictions and the experimental data. Simulations of a series of similar experiments where only certain dimensionless parameters were allowed to vary are also included. Here, a newly implemented and more complete drift wave theory from Sweden is tested and compared against results obtained from the theory previously used in the calibration study.
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