Optimising TGLF for a Q=10 Burning Spherical Tokamak

Bhavin Patel; David Dickinson; F. Koechl; Colin Roach; Gary Staebler; Howard Read Wilson

Optimising TGLF for a Q=10 Burning Spherical Tokamak

Bhavin Patel, David Dickinson, F. Koechl, Colin Roach, Gary Staebler, Howard Read Wilson

Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

TGLF transport model predictions have been assessed in the vicinity of a theoretical high β burning plasma spherical tokamak at Q=10. Linear micro-stability
calculations from TGLF have been compared on a surface at mid-radius with the
gyrokinetic code GS2. Differences between TGLF and GS2 spectra can be characterised by the RMS difference in growth rates, σγ. We find considerable improvement in the quality of TGLF growth rate spectrum can be achieved by increasing
the number of parallel basis functions and by tuning the TGLF parameter used in
the model for trapped particles, θtrap.

Original language	English
Title of host publication	46th EPS Conference on Plasma Physics, EPS 2019
Publisher	European Physical Society
Volume	2019-July
Publication status	Published - 12 Jul 2019
Event	46th EPS Conference on Plasma Physics, EPS 2019 - Milan, Italy Duration: 8 Jul 2019 → 12 Jul 2019 https://www.epsplasma2019.eu

Conference

Conference	46th EPS Conference on Plasma Physics, EPS 2019
Abbreviated title	EPS 2019
Country/Territory	Italy
City	Milan
Period	8/07/19 → 12/07/19
Internet address	https://www.epsplasma2019.eu

Access to Document

Optimising TGLF for a Q=10 Burning Spherical TokamakAccepted author manuscript, 245 KB

http://ocs.ciemat.es/EPS2019PAP/pdf/P4.1103.pdf

Cite this

@inproceedings{73104549b7af49b4b0d258724870e050,

title = "Optimising TGLF for a Q=10 Burning Spherical Tokamak",

abstract = "TGLF transport model predictions have been assessed in the vicinity of a theoretical high β burning plasma spherical tokamak at Q=10. Linear micro-stabilitycalculations from TGLF have been compared on a surface at mid-radius with thegyrokinetic code GS2. Differences between TGLF and GS2 spectra can be characterised by the RMS difference in growth rates, σγ. We find considerable improvement in the quality of TGLF growth rate spectrum can be achieved by increasingthe number of parallel basis functions and by tuning the TGLF parameter used inthe model for trapped particles, θtrap.",

author = "Bhavin Patel and David Dickinson and F. Koechl and Colin Roach and Gary Staebler and Wilson, {Howard Read}",

year = "2019",

month = jul,

day = "12",

language = "English",

volume = "2019-July",

booktitle = "46th EPS Conference on Plasma Physics, EPS 2019",

publisher = "European Physical Society",

note = "46th EPS Conference on Plasma Physics, EPS 2019, EPS 2019 ; Conference date: 08-07-2019 Through 12-07-2019",

url = "https://www.epsplasma2019.eu",

}

TY - GEN

T1 - Optimising TGLF for a Q=10 Burning Spherical Tokamak

AU - Patel, Bhavin

AU - Dickinson, David

AU - Koechl, F.

AU - Roach, Colin

AU - Staebler, Gary

AU - Wilson, Howard Read

PY - 2019/7/12

Y1 - 2019/7/12

N2 - TGLF transport model predictions have been assessed in the vicinity of a theoretical high β burning plasma spherical tokamak at Q=10. Linear micro-stabilitycalculations from TGLF have been compared on a surface at mid-radius with thegyrokinetic code GS2. Differences between TGLF and GS2 spectra can be characterised by the RMS difference in growth rates, σγ. We find considerable improvement in the quality of TGLF growth rate spectrum can be achieved by increasingthe number of parallel basis functions and by tuning the TGLF parameter used inthe model for trapped particles, θtrap.

AB - TGLF transport model predictions have been assessed in the vicinity of a theoretical high β burning plasma spherical tokamak at Q=10. Linear micro-stabilitycalculations from TGLF have been compared on a surface at mid-radius with thegyrokinetic code GS2. Differences between TGLF and GS2 spectra can be characterised by the RMS difference in growth rates, σγ. We find considerable improvement in the quality of TGLF growth rate spectrum can be achieved by increasingthe number of parallel basis functions and by tuning the TGLF parameter used inthe model for trapped particles, θtrap.

M3 - Conference contribution

VL - 2019-July

BT - 46th EPS Conference on Plasma Physics, EPS 2019

PB - European Physical Society

T2 - 46th EPS Conference on Plasma Physics, EPS 2019

Y2 - 8 July 2019 through 12 July 2019

ER -