A high resolution finite volume method for efficient parallel simulation of casting processes on unstructured meshes

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We discuss selected aspects of a new parallel three-dimensional (3-D) computational tool for the unstructured mesh simulation of Los Alamos National Laboratory (LANL) casting processes. This tool, known as {bold Telluride}, draws upon on robust, high resolution finite volume solutions of metal alloy mass, momentum, and enthalpy conservation equations to model the filling, cooling, and solidification of LANL castings. We briefly describe the current {bold Telluride} physical models and solution methods, then detail our parallelization strategy as implemented with Fortran 90 (F90). This strategy has yielded straightforward and efficient parallelization on distributed and shared memory architectures, aided in large part ... continued below

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8 p.

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Kothe, D.B.; Turner, J.A.; Mosso, S.J. & Ferrell, R.C. March 1, 1997.

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Description

We discuss selected aspects of a new parallel three-dimensional (3-D) computational tool for the unstructured mesh simulation of Los Alamos National Laboratory (LANL) casting processes. This tool, known as {bold Telluride}, draws upon on robust, high resolution finite volume solutions of metal alloy mass, momentum, and enthalpy conservation equations to model the filling, cooling, and solidification of LANL castings. We briefly describe the current {bold Telluride} physical models and solution methods, then detail our parallelization strategy as implemented with Fortran 90 (F90). This strategy has yielded straightforward and efficient parallelization on distributed and shared memory architectures, aided in large part by new parallel libraries {bold JTpack9O} for Krylov-subspace iterative solution methods and {bold PGSLib} for efficient gather/scatter operations. We illustrate our methodology and current capabilities with source code examples and parallel efficiency results for a LANL casting simulation.

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8 p.

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OSTI as DE97003371

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  • 8. SIAM conference on parallel processing for scientific computing, Minneapolis, MN (United States), 14-17 Mar 1997

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  • Other: DE97003371
  • Report No.: LA-UR--97-30
  • Report No.: CONF-970342--6
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 459831
  • Archival Resource Key: ark:/67531/metadc676292

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Office of Scientific & Technical Information Technical Reports

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  • March 1, 1997

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  • July 25, 2015, 2:21 a.m.

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  • Feb. 29, 2016, 9:21 p.m.

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Kothe, D.B.; Turner, J.A.; Mosso, S.J. & Ferrell, R.C. A high resolution finite volume method for efficient parallel simulation of casting processes on unstructured meshes, article, March 1, 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc676292/: accessed December 11, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.