THE LOCAL LIMIT OF GLOBAL GYROKINETIC SIMULATIONS

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OAK-B135 Global gyrokinetic simulations of turbulence include physical effects that are not retained in local flux-tube simulations. nevertheless, in the limit of sufficiently small {rho}* (gyroradius compared to system size) it is expected that a local simulation should agree with a global one (at the local simulation radius) since all effects that are dropped in the local simulations are expected to vanish as {rho}* {yields} 0. In this note, global simulations of a well-established test case are indeed shown to recover the flux-tube limit at each radius.

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16 pages

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J, CANDY; RE, WALTZ & W, DORLAND October 1, 2003.

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OAK-B135 Global gyrokinetic simulations of turbulence include physical effects that are not retained in local flux-tube simulations. nevertheless, in the limit of sufficiently small {rho}* (gyroradius compared to system size) it is expected that a local simulation should agree with a global one (at the local simulation radius) since all effects that are dropped in the local simulations are expected to vanish as {rho}* {yields} 0. In this note, global simulations of a well-established test case are indeed shown to recover the flux-tube limit at each radius.

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16 pages

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INIS; OSTI as DE00823687

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  • Journal Name: PHYS. PLASMAS; Other Information: Submitted to PHYS. PLASMAS

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  • Report No.: NONE
  • Grant Number: FG03-95ER54309
  • Office of Scientific & Technical Information Report Number: 823687
  • Archival Resource Key: ark:/67531/metadc785421

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  • October 1, 2003

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • Jan. 3, 2017, 12:49 p.m.

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J, CANDY; RE, WALTZ & W, DORLAND. THE LOCAL LIMIT OF GLOBAL GYROKINETIC SIMULATIONS, article, October 1, 2003; United States. (digital.library.unt.edu/ark:/67531/metadc785421/: accessed June 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.