Drif6t wave based modelling of poloidal spin-up precursor and stepwise expansion of transport barriers

G. M. Staebler; R. E. Waltz; J. E. Kinsey; G. Bateman; A. H. Kritz; T. Onjun; A. Pankin; P. Zhu; W. Horton

doi:10.1088/0029-5515/41/7/310

Drif6t wave based modelling of poloidal spin-up precursor and stepwise expansion of transport barriers

G. M. Staebler, R. E. Waltz, J. E. Kinsey, G. Bateman, A. H. Kritz, T. Onjun, A. Pankin, P. Zhu, W. Horton

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

The rich phenomenology of internal transport barriers (ITBs) observed in tokamaks includes a poloidal spin-up precursor for balanced injection neutral beam heating and stepwise expansion of the barrier for unbalanced injection. Examples of numerical simulations of these phenomena are presented. Two drift wave based predictive transport models (GLF23 and multimode) are used. Both models include the suppression of ion temperature gradient modes as the E × B shear approaches the computed maximum linear growth rate. Modelling of discharges with ITBs from the DIII-D, JET and TFTR tokamaks are compared.

Original language	English
Pages (from-to)	891-899
Number of pages	9
Journal	Nuclear Fusion
Volume	41
Issue number	7
DOIs	https://doi.org/10.1088/0029-5515/41/7/310
State	Published - Jul 2001
Externally published	Yes

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title = "Drif6t wave based modelling of poloidal spin-up precursor and stepwise expansion of transport barriers",

abstract = "The rich phenomenology of internal transport barriers (ITBs) observed in tokamaks includes a poloidal spin-up precursor for balanced injection neutral beam heating and stepwise expansion of the barrier for unbalanced injection. Examples of numerical simulations of these phenomena are presented. Two drift wave based predictive transport models (GLF23 and multimode) are used. Both models include the suppression of ion temperature gradient modes as the E × B shear approaches the computed maximum linear growth rate. Modelling of discharges with ITBs from the DIII-D, JET and TFTR tokamaks are compared.",

author = "Staebler, {G. M.} and Waltz, {R. E.} and Kinsey, {J. E.} and G. Bateman and Kritz, {A. H.} and T. Onjun and A. Pankin and P. Zhu and W. Horton",

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T1 - Drif6t wave based modelling of poloidal spin-up precursor and stepwise expansion of transport barriers

AU - Staebler, G. M.

AU - Waltz, R. E.

AU - Kinsey, J. E.

AU - Bateman, G.

AU - Kritz, A. H.

AU - Onjun, T.

AU - Pankin, A.

AU - Zhu, P.

AU - Horton, W.

PY - 2001/7

Y1 - 2001/7

N2 - The rich phenomenology of internal transport barriers (ITBs) observed in tokamaks includes a poloidal spin-up precursor for balanced injection neutral beam heating and stepwise expansion of the barrier for unbalanced injection. Examples of numerical simulations of these phenomena are presented. Two drift wave based predictive transport models (GLF23 and multimode) are used. Both models include the suppression of ion temperature gradient modes as the E × B shear approaches the computed maximum linear growth rate. Modelling of discharges with ITBs from the DIII-D, JET and TFTR tokamaks are compared.

AB - The rich phenomenology of internal transport barriers (ITBs) observed in tokamaks includes a poloidal spin-up precursor for balanced injection neutral beam heating and stepwise expansion of the barrier for unbalanced injection. Examples of numerical simulations of these phenomena are presented. Two drift wave based predictive transport models (GLF23 and multimode) are used. Both models include the suppression of ion temperature gradient modes as the E × B shear approaches the computed maximum linear growth rate. Modelling of discharges with ITBs from the DIII-D, JET and TFTR tokamaks are compared.

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SN - 0029-5515

VL - 41

SP - 891

EP - 899

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 7

ER -

Drif6t wave based modelling of poloidal spin-up precursor and stepwise expansion of transport barriers

Abstract

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