A multimaterial extension to subzonal reconstruction

Starinshak, D. P.; Owen, J. M.

doi:10.1016/j.jcp.2015.11.056

Title: A multimaterial extension to subzonal reconstruction

Journal Article · Mon Nov 30 00:00:00 EST 2015 · Journal of Computational Physics

DOI:https://doi.org/10.1016/j.jcp.2015.11.056· OSTI ID:1831392

Starinshak, D. P. ^[1]; Owen, J. M. ^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Here, we present a new algorithm for reconstructing material-dependent subzonal information based on staggered primary/dual-mesh remapping of material-dependent conserved quantities. The algorithm is appropriate in the context of geometric, intersection-based overlay remapping methods, with specific application to staggered, total energy conserving, multi-material Lagrangian hydrodynamics schemes that discretize material masses on subzonal mesh elements. Our new approach avoids direct remapping of material-dependent subzonal variables; instead, the spatial profile of each variable is reconstructed using a combination of material-dependent zone (primary mesh) information, material-independent node (dual mesh) information, and discrete interface-reconstructed material concentration information. Conservation and convergence properties of the new algorithm are established through several challenging multi-material remapping and hydrodynamics tests.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1831392

Alternate ID(s):: OSTI ID: 1245493

Report Number(s):: LLNL-JRNL-670313; 792542; TRN: US2216879

Journal Information:: Journal of Computational Physics, Vol. 313; ISSN 0021-9991

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 6 works

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References (11)

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CRKSPH - A Conservative Reproducing Kernel Smoothed Particle Hydrodynamics Scheme Frontiere, Nicholas; Raskin, Cody D.; Owen, J. Michael arXiv https://doi.org/10.48550/arxiv.1605.00725	text	January 2016

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