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3-D reconnection and fluxing algorithms

  • Session II: Mesh Management and Visualization
  • Conference paper
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Advances in the Free-Lagrange Method Including Contributions on Adaptive Gridding and the Smooth Particle Hydrodynamics Method

Part of the book series: Lecture Notes in Physics ((LNP,volume 395))

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Abstract

We describe a robust algorithm for reconnecting a free-Lagrangian tetrahedral mesh in a 3-D hydrocode. This algorithm is an extension of an approach that was suggested by M. Fritts and J. Duckowicz and implemented by D. Fraser. Recent extensions to the original algorithm have greatly improved the reliability of the reconnection process, as well as significantly improving the conservation of important hydrodynamic quantities, such as mass, momentum, and energy. We also describe a fluxing algorithm that is robust even in the presence of inverted tetrahedra. The original algorithm was derived from the 2-D algorithm of R. A. Clark and was modified to handle the more difficult environment of the 3-D tetrahedral mesh.

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References

  1. M. J. Fritts, G. Erlebacher, and P. R. Eisenman, “Adaptive Triangular Meshes,” Proceedings of the Rezoning Workshop-1983, Los Alamos National Laboratory report LA-10112-C, 1984.

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  2. J. K. Dukowicz, Los Alamos National Laboratory personal communication, 1987.

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  3. D. M. Fraser, “Tetrahedral Meshing Considerations for a Three-Dimensional FreeLagrangian Code,” Los Alamos National Laboratory report LA-UR-88-3707, 1988.

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  4. M. S. Sahota, “Three-Dimensional Free-Lagrangian Hydrodynamics,” Los Alamos National Laboratory report LA-UR-89-1179, April 1989.

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  5. V. Andronov, S. M. Bakhrakh, E. E. Meshkov, V. N. Mokhov, V. V. Nikiforov, A. V. Pevnitskii, and A. I. Tolshmyakov, Soviet Physics, JETP, No. 44, 1976, pp 424–427.

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  6. R. A. Clark, Los Alamos National Laboratory personal communication, 1987.

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Author information

Authors and Affiliations

  1. X-7, Computational Physics, 87545, Los Alamos, New Mexico

    J. W. Painter & J. C. Marshall

Authors
  1. J. W. Painter
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  2. J. C. Marshall
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Editor information

Harold E. Trease Martin F. Fritts W. Patrick Crowley

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© 1991 Springer-Verlag

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Painter, J.W., Marshall, J.C. (1991). 3-D reconnection and fluxing algorithms. In: Trease, H.E., Fritts, M.F., Crowley, W.P. (eds) Advances in the Free-Lagrange Method Including Contributions on Adaptive Gridding and the Smooth Particle Hydrodynamics Method. Lecture Notes in Physics, vol 395. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-54960-9_47

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  • DOI: https://doi.org/10.1007/3-540-54960-9_47

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-54960-4

  • Online ISBN: 978-3-540-46608-6

  • eBook Packages: Springer Book Archive

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