| Autor: |
Najjar, F. M., Howard, W. M., Fried, L. E., Manaa, M. R., Nichols III, A., Levesque, G. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2012, Vol. 1426 Issue 1, p255-258, 4p, 1 Chart, 5 Graphs |
| Abstrakt: |
High-explosive (HE) material consists of large-sized grains with micron-sized embedded impurities and pores. Under various mechanical/thermal insults, these pores collapse generating high-temperature regions leading to ignition. A hydrodynamic study has been performed to investigate the mechanisms of pore collapse and hot spot initiation in TATB crystals, employing a multiphysics code, ALE3D, coupled to the chemistry module, Cheetah. This computational study includes reactive dynamics. Two-dimensional high-resolution large-scale meso-scale simulations have been performed. The parameter space is systematically studied by considering various shock strengths, pore diameters and multiple pore configurations. Preliminary 3-D simulations are undertaken to quantify the 3-D dynamics. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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