An extension of high-order shock-fitted detonation propagation in explosives
| Autor: | Tariq D. Aslam, Christopher Romick |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Arrhenius equation
Physics Numerical Analysis Physics and Astronomy (miscellaneous) Explosive material Applied Mathematics Numerical analysis Detonation Mechanics Space (mathematics) Ideal gas Computer Science Applications Shock (mechanics) Computational Mathematics symbols.namesake Planar Modeling and Simulation symbols |
| Zdroj: | Journal of Computational Physics. 395:765-771 |
| ISSN: | 0021-9991 |
| DOI: | 10.1016/j.jcp.2019.06.011 |
| Popis: | An update to the numerical shock-fitting scheme from [1] is proposed. The updated scheme locally lowers the order of the scheme in the region of secondary non-fitted waves that interact with the fitted front. In addition, it utilizes a non-uniform mapping from the physical space to the computational space along the streamline direction to offer computational savings over the use of an uniform spacing. The utility of the scheme is first demonstrated on planar ideal gas detonating flows. It is then applied to detonation propagation in a two-dimensional axisymmetric geometry while utilizing an Arrhenius Wescott-Stewart-Davis model for PBX 9502. |
| Databáze: | OpenAIRE |
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