Two-Phase Model of Combustion in Explosions

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A two-phase model for Aluminum particle combustion in explosions is proposed. It combines the gas-dynamic conservation laws for the gas phase with the continuum mechanics laws of multi-phase media, as formulated by Nigmatulin. Inter-phase mass, momentum and energy exchange are prescribed by the Khasainov model. Combustion is specified as material transformations in the Le Chatelier diagram which depicts the locus of thermodynamic states in the internal energy-temperature plane according to Kuhl. Numerical simulations are used to show the evolution of two-phase combustion fields generated by the explosive dissemination of a powdered Al fuel.

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Kuhl, A L; Khasainov, B & Bell, J June 19, 2006.

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Description

A two-phase model for Aluminum particle combustion in explosions is proposed. It combines the gas-dynamic conservation laws for the gas phase with the continuum mechanics laws of multi-phase media, as formulated by Nigmatulin. Inter-phase mass, momentum and energy exchange are prescribed by the Khasainov model. Combustion is specified as material transformations in the Le Chatelier diagram which depicts the locus of thermodynamic states in the internal energy-temperature plane according to Kuhl. Numerical simulations are used to show the evolution of two-phase combustion fields generated by the explosive dissemination of a powdered Al fuel.

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PDF-file: 14 pages; size: 2.1 Mbytes

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  • Presented at: Two-Phase Model of Combustion in Explosions, Karlsruhe, Germany, Jun 27 - Jun 30, 2006

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  • Report No.: UCRL-PROC-222284
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 898484
  • Archival Resource Key: ark:/67531/metadc887021

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Office of Scientific & Technical Information Technical Reports

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  • June 19, 2006

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • Dec. 2, 2016, 4:23 p.m.

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Kuhl, A L; Khasainov, B & Bell, J. Two-Phase Model of Combustion in Explosions, article, June 19, 2006; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc887021/: accessed April 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.