skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Computational methods for stellerator configurations

Abstract

This project had two main objectives. The first one was to continue to develop computational methods for the study of three dimensional magnetic confinement configurations. The second one was to collaborate and interact with researchers in the field who can use these techniques to study and design fusion experiments. The first objective has been achieved with the development of the spectral code BETAS and the formulation of a new variational approach for the study of magnetic island formation in a self consistent fashion. The code can compute the correct island width corresponding to the saturated island, a result shown by comparing the computed island with the results of unstable tearing modes in Tokamaks and with experimental results in the IMS Stellarator. In addition to studying three dimensional nonlinear effects in Tokamaks configurations, these self consistent computed island equilibria will be used to study transport effects due to magnetic island formation and to nonlinearly bifurcated equilibria. The second objective was achieved through direct collaboration with Steve Hirshman at Oak Ridge, D. Anderson and R. Talmage at Wisconsin as well as through participation in the Sherwood and APS meetings.

Authors:
Publication Date:
Research Org.:
City Coll., New York, NY (United States). Dept. of Computer Science
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
5546010
Report Number(s):
DOE/ER/53285-2
ON: DE92011131
DOE Contract Number:
FG02-89ER53285
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; STELLARATORS; CALCULATION METHODS; CHARGED-PARTICLE TRANSPORT; ITERATIVE METHODS; MAGNETIC FIELDS; MAGNETIC ISLANDS; MHD EQUILIBRIUM; MONTE CARLO METHOD; PROGRESS REPORT; VARIATIONAL METHODS; CLOSED PLASMA DEVICES; DOCUMENT TYPES; EQUILIBRIUM; MAGNETIC FIELD CONFIGURATIONS; RADIATION TRANSPORT; THERMONUCLEAR DEVICES; 700330* - Plasma Kinetics, Transport, & Impurities- (1992-)

Citation Formats

Betancourt, O. Computational methods for stellerator configurations. United States: N. p., 1992. Web. doi:10.2172/5546010.
Betancourt, O. Computational methods for stellerator configurations. United States. doi:10.2172/5546010.
Betancourt, O. Wed . "Computational methods for stellerator configurations". United States. doi:10.2172/5546010. https://www.osti.gov/servlets/purl/5546010.
@article{osti_5546010,
title = {Computational methods for stellerator configurations},
author = {Betancourt, O.},
abstractNote = {This project had two main objectives. The first one was to continue to develop computational methods for the study of three dimensional magnetic confinement configurations. The second one was to collaborate and interact with researchers in the field who can use these techniques to study and design fusion experiments. The first objective has been achieved with the development of the spectral code BETAS and the formulation of a new variational approach for the study of magnetic island formation in a self consistent fashion. The code can compute the correct island width corresponding to the saturated island, a result shown by comparing the computed island with the results of unstable tearing modes in Tokamaks and with experimental results in the IMS Stellarator. In addition to studying three dimensional nonlinear effects in Tokamaks configurations, these self consistent computed island equilibria will be used to study transport effects due to magnetic island formation and to nonlinearly bifurcated equilibria. The second objective was achieved through direct collaboration with Steve Hirshman at Oak Ridge, D. Anderson and R. Talmage at Wisconsin as well as through participation in the Sherwood and APS meetings.},
doi = {10.2172/5546010},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1992},
month = {Wed Jan 01 00:00:00 EST 1992}
}

Technical Report:

Save / Share: