A new quasilinear formulation for ICRF plasmas in a toroidal geometry

Jungpyo Lee; John Wright; Nicola Bertelli; David Smithe; Ernest Valeo; Yuri Petrov; Erwin F. Jaeger; Lee Berry; Robert Harvey; Paul Bonoli

doi:10.1051/epjconf/201715703028

A new quasilinear formulation for ICRF plasmas in a toroidal geometry

Jungpyo Lee, John Wright, Nicola Bertelli, David Smithe, Ernest Valeo, Yuri Petrov, Erwin F. Jaeger, Lee Berry, Robert Harvey, Paul Bonoli

PPPL NSTX

Research output: Contribution to journal › Conference article › peer-review

3 Scopus citations

Abstract

We present a new formulation for quasilinear velocity space diffusion for ICRF plasmas that considers two different aspects: (1) finite Larmor radius approximation and (2) includes the effect of toroidal geometry and constructs a positive definite form. In the first aspect, the Kennel-Engelmann (K-E) quasilinear diffusion coefficients are successfully approximated in a small Larmor radius limit and implemented for the numerical codes (TORIC-CQL3D). In the second aspect, the quasilinear diffusion is reformulated in a toroidal geometry in order to include the parallel dynamics in the inhomogeneous plasmas and magnetic fields. We use these two quasilinear formulations to simulate ITER plasmas with ICRF injection for minority fundamental heating and Tritium second harmonic cyclotron heating.

Original language	English (US)
Article number	03028
Journal	EPJ Web of Conferences
Volume	157
DOIs	https://doi.org/10.1051/epjconf/201715703028
State	Published - Oct 23 2017
Event	22nd Topical Conference on Radio-Frequency Power in Plasmas 2017 - Aix en Provence, France Duration: May 30 2017 → Jun 2 2017

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Access to Document

10.1051/epjconf/201715703028

Cite this

@article{f7aeb73d8fe34e8fa29b5bf4cb32dce0,

title = "A new quasilinear formulation for ICRF plasmas in a toroidal geometry",

abstract = "We present a new formulation for quasilinear velocity space diffusion for ICRF plasmas that considers two different aspects: (1) finite Larmor radius approximation and (2) includes the effect of toroidal geometry and constructs a positive definite form. In the first aspect, the Kennel-Engelmann (K-E) quasilinear diffusion coefficients are successfully approximated in a small Larmor radius limit and implemented for the numerical codes (TORIC-CQL3D). In the second aspect, the quasilinear diffusion is reformulated in a toroidal geometry in order to include the parallel dynamics in the inhomogeneous plasmas and magnetic fields. We use these two quasilinear formulations to simulate ITER plasmas with ICRF injection for minority fundamental heating and Tritium second harmonic cyclotron heating.",

author = "Jungpyo Lee and John Wright and Nicola Bertelli and David Smithe and Ernest Valeo and Yuri Petrov and Jaeger, \{Erwin F.\} and Lee Berry and Robert Harvey and Paul Bonoli",

note = "Publisher Copyright: {\textcopyright} 2017 The authors, published by EDP Sciences.; 22nd Topical Conference on Radio-Frequency Power in Plasmas 2017 ; Conference date: 30-05-2017 Through 02-06-2017",

year = "2017",

month = oct,

day = "23",

doi = "10.1051/epjconf/201715703028",

language = "English (US)",

volume = "157",

journal = "EPJ Web of Conferences",

issn = "2101-6275",

publisher = "EDP Sciences",

}

TY - JOUR

T1 - A new quasilinear formulation for ICRF plasmas in a toroidal geometry

AU - Lee, Jungpyo

AU - Wright, John

AU - Bertelli, Nicola

AU - Smithe, David

AU - Valeo, Ernest

AU - Petrov, Yuri

AU - Jaeger, Erwin F.

AU - Berry, Lee

AU - Harvey, Robert

AU - Bonoli, Paul

PY - 2017/10/23

Y1 - 2017/10/23

N2 - We present a new formulation for quasilinear velocity space diffusion for ICRF plasmas that considers two different aspects: (1) finite Larmor radius approximation and (2) includes the effect of toroidal geometry and constructs a positive definite form. In the first aspect, the Kennel-Engelmann (K-E) quasilinear diffusion coefficients are successfully approximated in a small Larmor radius limit and implemented for the numerical codes (TORIC-CQL3D). In the second aspect, the quasilinear diffusion is reformulated in a toroidal geometry in order to include the parallel dynamics in the inhomogeneous plasmas and magnetic fields. We use these two quasilinear formulations to simulate ITER plasmas with ICRF injection for minority fundamental heating and Tritium second harmonic cyclotron heating.

AB - We present a new formulation for quasilinear velocity space diffusion for ICRF plasmas that considers two different aspects: (1) finite Larmor radius approximation and (2) includes the effect of toroidal geometry and constructs a positive definite form. In the first aspect, the Kennel-Engelmann (K-E) quasilinear diffusion coefficients are successfully approximated in a small Larmor radius limit and implemented for the numerical codes (TORIC-CQL3D). In the second aspect, the quasilinear diffusion is reformulated in a toroidal geometry in order to include the parallel dynamics in the inhomogeneous plasmas and magnetic fields. We use these two quasilinear formulations to simulate ITER plasmas with ICRF injection for minority fundamental heating and Tritium second harmonic cyclotron heating.

UR - https://www.scopus.com/pages/publications/85032622474

UR - https://www.scopus.com/inward/citedby.url?scp=85032622474&partnerID=8YFLogxK

U2 - 10.1051/epjconf/201715703028

DO - 10.1051/epjconf/201715703028

M3 - Conference article

AN - SCOPUS:85032622474

SN - 2101-6275

VL - 157

JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

M1 - 03028

T2 - 22nd Topical Conference on Radio-Frequency Power in Plasmas 2017

Y2 - 30 May 2017 through 2 June 2017

ER -

A new quasilinear formulation for ICRF plasmas in a toroidal geometry

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this