Advanced 3D electromagnetic and particle-in-cell modeling on structured/unstructured hybrid grids

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Description

New techniques have been recently developed that allow unstructured, free meshes to be embedded into standard 3-dimensional, rectilinear, finite-difference time-domain grids. The resulting hybrid-grid modeling capability allows the higher resolution and fidelity of modeling afforded by free meshes to be combined with the simplicity and efficiency of rectilinear techniques. Integration of these new methods into the full-featured, general-purpose QUICKSILVER electromagnetic, Particle-In-Cell (PIC) code provides new modeling capability for a wide variety of electromagnetic and plasma physics problems. To completely exploit the integration of this technology into QUICKSILVER for applications requiring the self-consistent treatment of charged particles, this project has extended ... continued below

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49 p.

Creation Information

Seidel, D.B.; Pasik, M.F.; Kiefer, M.L.; Riley, D.J. & Turner, C.D. January 1, 1998.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 33 times . More information about this report can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

New techniques have been recently developed that allow unstructured, free meshes to be embedded into standard 3-dimensional, rectilinear, finite-difference time-domain grids. The resulting hybrid-grid modeling capability allows the higher resolution and fidelity of modeling afforded by free meshes to be combined with the simplicity and efficiency of rectilinear techniques. Integration of these new methods into the full-featured, general-purpose QUICKSILVER electromagnetic, Particle-In-Cell (PIC) code provides new modeling capability for a wide variety of electromagnetic and plasma physics problems. To completely exploit the integration of this technology into QUICKSILVER for applications requiring the self-consistent treatment of charged particles, this project has extended existing PIC methods for operation on these hybrid unstructured/rectilinear meshes. Several technical issues had to be addressed in order to accomplish this goal, including the location of particles on the unstructured mesh, adequate conservation of charge, and the proper handling of particles in the transition region between structured and unstructured portions of the hybrid grid.

Physical Description

49 p.

Notes

OSTI as DE98002706

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  • Other Information: PBD: Jan 1998

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  • Other: DE98002706
  • Report No.: SAND--97-3190
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/567511 | External Link
  • Office of Scientific & Technical Information Report Number: 567511
  • Archival Resource Key: ark:/67531/metadc689586

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  • January 1, 1998

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • April 12, 2016, 9:35 p.m.

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Seidel, D.B.; Pasik, M.F.; Kiefer, M.L.; Riley, D.J. & Turner, C.D. Advanced 3D electromagnetic and particle-in-cell modeling on structured/unstructured hybrid grids, report, January 1, 1998; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc689586/: accessed December 12, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.