Next generation experiments and models for shock initiation and detonation of solid explosives

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Current phenomenological hydrodynamic reactive flow models, such as Ignition and Growth and Johnson- Tang-Forest, when normalized to embedded gauge and laser velocimetry data, have been very successful in predicting shock initiation and detonation properties of solid explosives in most scenarios. However, since these models use reaction rates based on the compression and pressure of the reacting mixture, they can not easily model situations in which the local temperature, which controls the local reaction rate, changes differently from the local pressure. With the advent of larger, faster, parallel computers, microscopic modeling of the hot spot formation processes and Arrhenius chemical kinetic ... continued below

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718 Kilobytes pages

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Tarver, C M June 1, 1999.

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Current phenomenological hydrodynamic reactive flow models, such as Ignition and Growth and Johnson- Tang-Forest, when normalized to embedded gauge and laser velocimetry data, have been very successful in predicting shock initiation and detonation properties of solid explosives in most scenarios. However, since these models use reaction rates based on the compression and pressure of the reacting mixture, they can not easily model situations in which the local temperature, which controls the local reaction rate, changes differently from the local pressure. With the advent of larger, faster, parallel computers, microscopic modeling of the hot spot formation processes and Arrhenius chemical kinetic reaction rates that dominate shock initiation and detonation can now be attempted. Such a modeling effort can not be successful without nanosecond or better time resolved experimental data on these processes. The experimental and modeling approaches required to build the next generation of physically realistic reactive flow models are discussed.

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718 Kilobytes pages

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  • American Physical Society 11th Topical Conference on Shock Compression of Condensed Matter, Snowbird, UT (US), 06/27/1999--07/02/1999

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  • Report No.: UCRL-JC-134558
  • Report No.: DP0101011
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 12159
  • Archival Resource Key: ark:/67531/metadc626289

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • June 1, 1999

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • May 6, 2016, 1:45 p.m.

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Tarver, C M. Next generation experiments and models for shock initiation and detonation of solid explosives, article, June 1, 1999; California. (digital.library.unt.edu/ark:/67531/metadc626289/: accessed October 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.