Numerical study of tokamak equilibria with arbitrary flow

L. Guazzotto; R. Betti; J. Manickam; S. Kaye

doi:10.1063/1.1637918

Numerical study of tokamak equilibria with arbitrary flow

L. Guazzotto, R. Betti, J. Manickam, S. Kaye

PPPL NSTX

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Abstract

The effects of toroidal and poloidal flows on the equilibrium of tokamak plasmas were studied numerically using the code FLOW. The changes in the profiles induced by large toroidal flows on NSTX-like equilibria were determined by this code. This code was also used to study the effects of poloidal flow when the flow velocity profile varies from subsonic to supersonic with respect to the poloidal sound speed. The results show that pressure and density profiles develop a pedestal structure characterized by radial discontinuities at the transonic surface.

Original language	English (US)
Pages (from-to)	604-614
Number of pages	11
Journal	Physics of Plasmas
Volume	11
Issue number	2
DOIs	https://doi.org/10.1063/1.1637918
State	Published - Feb 2004

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1063/1.1637918

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abstract = "The effects of toroidal and poloidal flows on the equilibrium of tokamak plasmas were studied numerically using the code FLOW. The changes in the profiles induced by large toroidal flows on NSTX-like equilibria were determined by this code. This code was also used to study the effects of poloidal flow when the flow velocity profile varies from subsonic to supersonic with respect to the poloidal sound speed. The results show that pressure and density profiles develop a pedestal structure characterized by radial discontinuities at the transonic surface.",

author = "L. Guazzotto and R. Betti and J. Manickam and S. Kaye",

year = "2004",

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T1 - Numerical study of tokamak equilibria with arbitrary flow

AU - Guazzotto, L.

AU - Betti, R.

AU - Manickam, J.

AU - Kaye, S.

PY - 2004/2

Y1 - 2004/2

N2 - The effects of toroidal and poloidal flows on the equilibrium of tokamak plasmas were studied numerically using the code FLOW. The changes in the profiles induced by large toroidal flows on NSTX-like equilibria were determined by this code. This code was also used to study the effects of poloidal flow when the flow velocity profile varies from subsonic to supersonic with respect to the poloidal sound speed. The results show that pressure and density profiles develop a pedestal structure characterized by radial discontinuities at the transonic surface.

AB - The effects of toroidal and poloidal flows on the equilibrium of tokamak plasmas were studied numerically using the code FLOW. The changes in the profiles induced by large toroidal flows on NSTX-like equilibria were determined by this code. This code was also used to study the effects of poloidal flow when the flow velocity profile varies from subsonic to supersonic with respect to the poloidal sound speed. The results show that pressure and density profiles develop a pedestal structure characterized by radial discontinuities at the transonic surface.

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IS - 2

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Numerical study of tokamak equilibria with arbitrary flow

Abstract

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