Finite banana width effect on NTM threshold physics

K. Imada; J. W. Connor; H. R. Wilson

Finite banana width effect on NTM threshold physics

K. Imada, J. W. Connor, H. R. Wilson

Research output: Contribution to conference › Paper › peer-review

1 Scopus citations

Abstract

We have demonstrated that our new drift kinetic equation for calculating the ion response to the island perturbation produces the same form of solution in the limit of small ion banana width as the previous analytic work. In order to explore the new physics, we must solve Eq.(5) in full, which requires a numerical treatment. This will provide a valuable benchmark for a numerical solution of the full Eq.(5). The code under development does produce a solution that is a function of the modified perturbed flux, i.e. G = G(Ω_s) (Fig.2). However, there are differences in the numerical and analytic limit results for the perturbed ion density and parallel flow profiles, which need to be understood. Once the benchmarking of our code is complete and its algorithm fully verified, we will be able to explore the new physics.

Original language	English
State	Published - 2016
Externally published	Yes
Event	43rd European Physical Society Conference on Plasma Physics, EPS 2016 - Leuven, Belgium Duration: Jul 4 2016 → Jul 8 2016

Conference

Conference	43rd European Physical Society Conference on Plasma Physics, EPS 2016
Country/Territory	Belgium
City	Leuven
Period	07/4/16 → 07/8/16

Funding

This project is funded by EPSRC grant number EP/N009363/1. Computational time is provided by IFERC-CSC, and Plasma Physics HEC Consortia, grant number EP/L000237/1.

Funders	Funder number
IFERC-CSC
Plasma Physics HEC Consortia	EP/L000237/1
Engineering and Physical Sciences Research Council	EP/N009363/1

Cite this

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abstract = "We have demonstrated that our new drift kinetic equation for calculating the ion response to the island perturbation produces the same form of solution in the limit of small ion banana width as the previous analytic work. In order to explore the new physics, we must solve Eq.(5) in full, which requires a numerical treatment. This will provide a valuable benchmark for a numerical solution of the full Eq.(5). The code under development does produce a solution that is a function of the modified perturbed flux, i.e. G = G(Ωs) (Fig.2). However, there are differences in the numerical and analytic limit results for the perturbed ion density and parallel flow profiles, which need to be understood. Once the benchmarking of our code is complete and its algorithm fully verified, we will be able to explore the new physics.",

author = "K. Imada and Connor, {J. W.} and Wilson, {H. R.}",

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note = "43rd European Physical Society Conference on Plasma Physics, EPS 2016 ; Conference date: 04-07-2016 Through 08-07-2016",

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T1 - Finite banana width effect on NTM threshold physics

AU - Imada, K.

AU - Connor, J. W.

AU - Wilson, H. R.

PY - 2016

Y1 - 2016

N2 - We have demonstrated that our new drift kinetic equation for calculating the ion response to the island perturbation produces the same form of solution in the limit of small ion banana width as the previous analytic work. In order to explore the new physics, we must solve Eq.(5) in full, which requires a numerical treatment. This will provide a valuable benchmark for a numerical solution of the full Eq.(5). The code under development does produce a solution that is a function of the modified perturbed flux, i.e. G = G(Ωs) (Fig.2). However, there are differences in the numerical and analytic limit results for the perturbed ion density and parallel flow profiles, which need to be understood. Once the benchmarking of our code is complete and its algorithm fully verified, we will be able to explore the new physics.

AB - We have demonstrated that our new drift kinetic equation for calculating the ion response to the island perturbation produces the same form of solution in the limit of small ion banana width as the previous analytic work. In order to explore the new physics, we must solve Eq.(5) in full, which requires a numerical treatment. This will provide a valuable benchmark for a numerical solution of the full Eq.(5). The code under development does produce a solution that is a function of the modified perturbed flux, i.e. G = G(Ωs) (Fig.2). However, there are differences in the numerical and analytic limit results for the perturbed ion density and parallel flow profiles, which need to be understood. Once the benchmarking of our code is complete and its algorithm fully verified, we will be able to explore the new physics.

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M3 - Paper

AN - SCOPUS:85013978901

T2 - 43rd European Physical Society Conference on Plasma Physics, EPS 2016

Y2 - 4 July 2016 through 8 July 2016

ER -

Finite banana width effect on NTM threshold physics

Abstract

Conference

Funding

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