Computation of ponderomotive force in 3D FDTD simulation

David Smithe; Alexei Pankin; Tom Jenkins; Jim Myra; Rhea Barnett

doi:10.1063/5.0013578

Computation of ponderomotive force in 3D FDTD simulation

David Smithe, Alexei Pankin, Tom Jenkins, Jim Myra, Rhea Barnett

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

4 Scopus citations

Abstract

We present a detailed mathematical analysis of the tensor Ponderomotive Force calculation in 3D, from fundamental principles. We are primarily interested in applications of this to tokamak configurations with ICRF, helicon, and/or LH RF sources. The tensor analysis includes force terms in both the poloidal plane and in the toroidal plane, which can result in either perpendicular force x B poloidal-plane convection or parallel force that can lead to rarefaction, or other toroidal displacements when coupled with an equilibrium code. We also present the implementation of the tensor ponderomotive force calculation in a 3D finite-difference time-domain (FDTD) simulation tool (VSim [1]) which can model 3D antenna and launcher geometry. We verify the implementation on a simple test case. We also discuss processing the 3D vector force for use in equilibrium and turbulence codes.

Original language	English
Title of host publication	23rd Topical Conference on Radiofrequency Power in Plasmas
Editors	Paul T. Bonoli, Robert I. Pinsker, Xiaojie Wang
Publisher	American Institute of Physics Inc.
ISBN (Electronic)	9780735420137
DOIs	https://doi.org/10.1063/5.0013578
State	Published - Sep 16 2020
Externally published	Yes
Event	23rd Topical Conference on Radiofrequency Power in Plasmas - Hefei, China Duration: May 14 2019 → May 17 2019

Publication series

Name	AIP Conference Proceedings
Volume	2254
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	23rd Topical Conference on Radiofrequency Power in Plasmas
Country/Territory	China
City	Hefei
Period	05/14/19 → 05/17/19

Funding

Work supported by US DOE SciDAC Initiative, DE-SC00183 and DE-AC05-00OR22725.

Funders	Funder number
U.S. Department of Energy	DE-AC05-00OR22725, DE-SC00183

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10.1063/5.0013578

Cite this

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title = "Computation of ponderomotive force in 3D FDTD simulation",

abstract = "We present a detailed mathematical analysis of the tensor Ponderomotive Force calculation in 3D, from fundamental principles. We are primarily interested in applications of this to tokamak configurations with ICRF, helicon, and/or LH RF sources. The tensor analysis includes force terms in both the poloidal plane and in the toroidal plane, which can result in either perpendicular force x B poloidal-plane convection or parallel force that can lead to rarefaction, or other toroidal displacements when coupled with an equilibrium code. We also present the implementation of the tensor ponderomotive force calculation in a 3D finite-difference time-domain (FDTD) simulation tool (VSim [1]) which can model 3D antenna and launcher geometry. We verify the implementation on a simple test case. We also discuss processing the 3D vector force for use in equilibrium and turbulence codes.",

author = "David Smithe and Alexei Pankin and Tom Jenkins and Jim Myra and Rhea Barnett",

note = "Publisher Copyright: {\textcopyright} 2020 American Institute of Physics Inc.. All rights reserved.; 23rd Topical Conference on Radiofrequency Power in Plasmas ; Conference date: 14-05-2019 Through 17-05-2019",

year = "2020",

month = sep,

day = "16",

doi = "10.1063/5.0013578",

language = "English",

series = "AIP Conference Proceedings",

publisher = "American Institute of Physics Inc.",

editor = "Bonoli, {Paul T.} and Pinsker, {Robert I.} and Xiaojie Wang",

booktitle = "23rd Topical Conference on Radiofrequency Power in Plasmas",

}

Smithe, D, Pankin, A, Jenkins, T, Myra, J & Barnett, R 2020, Computation of ponderomotive force in 3D FDTD simulation. in PT Bonoli, RI Pinsker & X Wang (eds), 23rd Topical Conference on Radiofrequency Power in Plasmas., 60009, AIP Conference Proceedings, vol. 2254, American Institute of Physics Inc., 23rd Topical Conference on Radiofrequency Power in Plasmas, Hefei, China, 05/14/19. https://doi.org/10.1063/5.0013578

Computation of ponderomotive force in 3D FDTD simulation. / Smithe, David; Pankin, Alexei; Jenkins, Tom et al.
23rd Topical Conference on Radiofrequency Power in Plasmas. ed. / Paul T. Bonoli; Robert I. Pinsker; Xiaojie Wang. American Institute of Physics Inc., 2020. 60009 (AIP Conference Proceedings; Vol. 2254).

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

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AU - Myra, Jim

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PY - 2020/9/16

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N2 - We present a detailed mathematical analysis of the tensor Ponderomotive Force calculation in 3D, from fundamental principles. We are primarily interested in applications of this to tokamak configurations with ICRF, helicon, and/or LH RF sources. The tensor analysis includes force terms in both the poloidal plane and in the toroidal plane, which can result in either perpendicular force x B poloidal-plane convection or parallel force that can lead to rarefaction, or other toroidal displacements when coupled with an equilibrium code. We also present the implementation of the tensor ponderomotive force calculation in a 3D finite-difference time-domain (FDTD) simulation tool (VSim [1]) which can model 3D antenna and launcher geometry. We verify the implementation on a simple test case. We also discuss processing the 3D vector force for use in equilibrium and turbulence codes.

AB - We present a detailed mathematical analysis of the tensor Ponderomotive Force calculation in 3D, from fundamental principles. We are primarily interested in applications of this to tokamak configurations with ICRF, helicon, and/or LH RF sources. The tensor analysis includes force terms in both the poloidal plane and in the toroidal plane, which can result in either perpendicular force x B poloidal-plane convection or parallel force that can lead to rarefaction, or other toroidal displacements when coupled with an equilibrium code. We also present the implementation of the tensor ponderomotive force calculation in a 3D finite-difference time-domain (FDTD) simulation tool (VSim [1]) which can model 3D antenna and launcher geometry. We verify the implementation on a simple test case. We also discuss processing the 3D vector force for use in equilibrium and turbulence codes.

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Computation of ponderomotive force in 3D FDTD simulation

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