A theorybased transport model with comprehensive physics
Abstract
A new theorybased transport model with comprehensive physics (trapping, general toroidal geometry, fully electromagnetic, electronion collisions, impurity ions) has been developed. The core of the model is the new trappedgyroLandaufluid (TGLF) equations, which provide a fast and accurate approximation to the linear eigenmodes for gyrokinetic driftwave instabilities (trapped ion and electron modes, ion and electron temperature gradient modes, and kinetic ballooning modes). The new TGLF transport model is more accurate, and has an extended range of validity, compared to its predecessor GLF23. The TGLF model unifies trapped and passing particles in a single set of gyroLandaufluid equations. A model for the averaging of the Landau resonance by the trapped particles makes the equations work seamlessly over the whole driftwave wavenumber range from trapped ion modes to electron temperature gradient modes. A fast eigenmode solution method enables unrestricted magnetic geometry. The transport model uses the TGLF eigenmodes to compute quasilinear fluxes of energy and particles. A model for the saturated intensity of the turbulence completes the flux calculation. The intensity model is constructed to fit a large set of nonlinear gyrokinetic turbulence simulations with kinetic electrons. The TGLF model is valid in new physical regimes that GLF23 was not. These includemore »
 Authors:
 General Atomics, P.O. Box 85608, San Diego, California 921865608 (United States)
 (United States)
 Publication Date:
 OSTI Identifier:
 20975037
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physics of Plasmas; Journal Volume: 14; Journal Issue: 5; Other Information: DOI: 10.1063/1.2436852; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; APPROXIMATIONS; ASPECT RATIO; BALLOONING INSTABILITY; DRIFT INSTABILITY; ELECTRON TEMPERATURE; ELECTRONION COLLISIONS; ELECTRONS; HMODE PLASMA CONFINEMENT; IONS; NONLINEAR PROBLEMS; PLASMA; PLASMA FLUID EQUATIONS; PLASMA IMPURITIES; PLASMA SIMULATION; TEMPERATURE GRADIENTS; TOKAMAK DEVICES; TRANSPORT THEORY; TRAPPING; WAVE PROPAGATION
Citation Formats
Staebler, G. M., Kinsey, J. E., Waltz, R. E., Lehigh University, Bethlehem, Pennsylvania 18015, and General Atomics, P.O. Box 85608, San Diego, California 921865608. A theorybased transport model with comprehensive physics. United States: N. p., 2007.
Web. doi:10.1063/1.2436852.
Staebler, G. M., Kinsey, J. E., Waltz, R. E., Lehigh University, Bethlehem, Pennsylvania 18015, & General Atomics, P.O. Box 85608, San Diego, California 921865608. A theorybased transport model with comprehensive physics. United States. doi:10.1063/1.2436852.
Staebler, G. M., Kinsey, J. E., Waltz, R. E., Lehigh University, Bethlehem, Pennsylvania 18015, and General Atomics, P.O. Box 85608, San Diego, California 921865608. Tue .
"A theorybased transport model with comprehensive physics". United States.
doi:10.1063/1.2436852.
@article{osti_20975037,
title = {A theorybased transport model with comprehensive physics},
author = {Staebler, G. M. and Kinsey, J. E. and Waltz, R. E. and Lehigh University, Bethlehem, Pennsylvania 18015 and General Atomics, P.O. Box 85608, San Diego, California 921865608},
abstractNote = {A new theorybased transport model with comprehensive physics (trapping, general toroidal geometry, fully electromagnetic, electronion collisions, impurity ions) has been developed. The core of the model is the new trappedgyroLandaufluid (TGLF) equations, which provide a fast and accurate approximation to the linear eigenmodes for gyrokinetic driftwave instabilities (trapped ion and electron modes, ion and electron temperature gradient modes, and kinetic ballooning modes). The new TGLF transport model is more accurate, and has an extended range of validity, compared to its predecessor GLF23. The TGLF model unifies trapped and passing particles in a single set of gyroLandaufluid equations. A model for the averaging of the Landau resonance by the trapped particles makes the equations work seamlessly over the whole driftwave wavenumber range from trapped ion modes to electron temperature gradient modes. A fast eigenmode solution method enables unrestricted magnetic geometry. The transport model uses the TGLF eigenmodes to compute quasilinear fluxes of energy and particles. A model for the saturated intensity of the turbulence completes the flux calculation. The intensity model is constructed to fit a large set of nonlinear gyrokinetic turbulence simulations with kinetic electrons. The TGLF model is valid in new physical regimes that GLF23 was not. These include the low aspect ratio spherical torus, which has both a high trapped fraction and strong shaping of magnetic flux surfaces. The TGLF model is also valid close to the magnetic separatrix so the transport physics of the Hmode pedestal region can be explored.},
doi = {10.1063/1.2436852},
journal = {Physics of Plasmas},
number = 5,
volume = 14,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}

Predictive transport and current drive simulations are presented for the time evolution of the temperature and density profiles in the Tokamak Physics Experiment (TPX). [W. M. Nevins {ital et} {ital al}., {ital Proceedings} {ital of} {ital the} {ital International} {ital Conference} {ital on} {ital Plasma} {ital Physics} {ital and} {ital Controlled} {ital Nuclear} {ital Fusion} {ital Research}, W{umlt u}rzburg, 1992 (International Atomic Energy Agency, Vienna, 1992), Vol. 3, p. 279]. A distinguishing feature of this study is that we use a theoretically derived transport model that has been empirically calibrated against Ohmic, lowconfinement and highconfinement mode discharges from seven differentmore »

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Transport theory of deeplyinelastic heavyion collisions based on a randommatrix model II. Study of a onedimensional model
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Systematic comparison of a theorybased transport model with a multitokamak profile database
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Transport theory of deeply inelastic heavyion collisions based on a randommatrix model. III. Calculation of cross sections. Comparison with the reaction Ar+Th
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