Microscopic origin of self-similarity in granular blast waves
| Autor: | Matthieu Barbier, Dario Villamaina, Emmanuel Trizac |
|---|---|
| Přispěvatelé: | Department of Ecology and Evolutionary Biology [Princeton], Princeton University, Laboratoire de Physique Théorique de l'ENS (LPTENS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Théorique et Modèles Statistiques (LPTMS), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Théorique de l'ENS [École Normale Supérieure] (LPTENS), Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
[PHYS]Physics [physics]
Fluid Flow and Transfer Processes Physics Continuum (measurement) Self-similarity Mechanical Engineering Computational Mechanics FOS: Physical sciences Mechanics Condensed Matter - Soft Condensed Matter Condensed Matter Physics 01 natural sciences Instability 010305 fluids & plasmas Molecular dynamics Fractal Mechanics of Materials 0103 physical sciences Dissipative system Soft Condensed Matter (cond-mat.soft) 010306 general physics Scaling ComputingMilieux_MISCELLANEOUS Blast wave |
| Zdroj: | Physics of Fluids Physics of Fluids, American Institute of Physics, 2016, 28 (8), pp.083302 Physics of Fluids, American Institute of Physics, 2016, 28 (8), pp.083302. ⟨10.1063/1.4961047⟩ Physics of Fluids, 2016, 28 (8), pp.083302. ⟨10.1063/1.4961047⟩ |
| ISSN: | 1070-6631 1089-7666 |
| DOI: | 10.1063/1.4961047⟩ |
| Popis: | The self-similar expansion of a blast wave, well-studied in air, has peculiar counterparts in dense and dissipative media such as granular gases. Recent results have shown that, while the traditional Taylor-von Neumann-Sedov (TvNS) derivation is not applicable to such granular blasts, they can nevertheless be well understood via a combination of microscopic and hydrodynamic insights. In this article, we provide a detailed analysis of these methods associating Molecular Dynamics simulations and continuum equations, which successfully predict hydrodynamic profiles, scaling properties and the instability of the self-similar solution. We also present new results for the energy conserving case, including the particle-level analysis of the classic TvNS solution and its breakdown at higher densities. 47 pages, 9 figures Supplementary Materials: 2 appendices, 3 figures |
| Databáze: | OpenAIRE |
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