HYBRID CODES: PAST, PRESENT AND FUTURE

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Hybrid codes, in which the ions are treated kinetically and the electrons are assumed to be a massless fluid, have been widely used in space physics over the past two decades. These codes are used to model phenomena that occur on ion inertia and gyroradius scales, which fall between longer scales obtained by magnetohydrodynamic simulations and shorter scales attainable by full particle simulations. In this tutorial, the assumptions and equations of the hybrid model are discussed along with some most commonly used numerical implementations. Examples of results of two-dimensional hybrid simulations are used to illustrate the method, to indicate some ... continued below

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103 Kilobytes pages

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WINSKE, D. & YIN, L. May 1, 2001.

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Hybrid codes, in which the ions are treated kinetically and the electrons are assumed to be a massless fluid, have been widely used in space physics over the past two decades. These codes are used to model phenomena that occur on ion inertia and gyroradius scales, which fall between longer scales obtained by magnetohydrodynamic simulations and shorter scales attainable by full particle simulations. In this tutorial, the assumptions and equations of the hybrid model are discussed along with some most commonly used numerical implementations. Examples of results of two-dimensional hybrid simulations are used to illustrate the method, to indicate some of the tradeoffs that need to be addressed in a realistic calculation, and to demonstrate the utility of the technique for problems of contemporary interest. Some speculation about the future direction of space physics research using hybrid codes is also provided.

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103 Kilobytes pages

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  • Report No.: LA-UR-01-2483
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 780538
  • Archival Resource Key: ark:/67531/metadc715304

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  • May 1, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • March 29, 2016, 7:40 p.m.

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WINSKE, D. & YIN, L. HYBRID CODES: PAST, PRESENT AND FUTURE, article, May 1, 2001; New Mexico. (digital.library.unt.edu/ark:/67531/metadc715304/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.