Wang, Chun ; Ye, Guanlin ; Meng, Xiannan ; Wang, Yongqi ; Peng, Chong (2021)
A Eulerian−Lagrangian Coupled Method for the Simulation of Submerged Granular Column Collapse.
In: Journal of Marine Science and Engineering, 9 (6)
doi: 10.3390/jmse9060617
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
A two-fluid Eulerian–Lagrangian coupled model is developed to investigate the complex interactions between solid particles and the ambient water during the process of submerged granular column collapse. In this model, the water phase is considered to be a Newtonian fluid, whereas the granular column is modeled as an elastic–perfectly plastic material. The water flow field is calculated by the mesh-based Eulerian Finite Volume Method (FVM), with the free surface captured by the Volume-of-Fluid (VOF) technique. The large deformation of the granular material is simulated by the mesh-free, particle-based Lagrangian Smoothed Particle Hydrodynamics method (SPH). Information transfer between Eulerian nodes and Lagrangian particles is performed by the aid of the SPH interpolation function. Both dry and submerged granular column collapses are simulated with the proposed model. Experiments of the submerged cases are also conducted for comparison. Effects of dilatancy (compaction) of initially dense (loose) packing granular columns on the mixture dynamics are investigated to reveal the mechanisms of different flow regimes. Pore water pressure field and granular velocity field are in good agreement between our numerical results and experimental observations, which demonstrates the capability of the proposed Eulerian–Lagrangian coupled method in dealing with complex submerged water–granular mixture flows.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2021 |
| Autor(en): | Wang, Chun ; Ye, Guanlin ; Meng, Xiannan ; Wang, Yongqi ; Peng, Chong |
| Art des Eintrags: | Bibliographie |
| Titel: | A Eulerian−Lagrangian Coupled Method for the Simulation of Submerged Granular Column Collapse |
| Sprache: | Englisch |
| Publikationsjahr: | 2021 |
| Ort: | Basel |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Marine Science and Engineering |
| Jahrgang/Volume einer Zeitschrift: | 9 |
| (Heft-)Nummer: | 6 |
| Kollation: | 20 Seiten |
| DOI: | 10.3390/jmse9060617 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | A two-fluid Eulerian–Lagrangian coupled model is developed to investigate the complex interactions between solid particles and the ambient water during the process of submerged granular column collapse. In this model, the water phase is considered to be a Newtonian fluid, whereas the granular column is modeled as an elastic–perfectly plastic material. The water flow field is calculated by the mesh-based Eulerian Finite Volume Method (FVM), with the free surface captured by the Volume-of-Fluid (VOF) technique. The large deformation of the granular material is simulated by the mesh-free, particle-based Lagrangian Smoothed Particle Hydrodynamics method (SPH). Information transfer between Eulerian nodes and Lagrangian particles is performed by the aid of the SPH interpolation function. Both dry and submerged granular column collapses are simulated with the proposed model. Experiments of the submerged cases are also conducted for comparison. Effects of dilatancy (compaction) of initially dense (loose) packing granular columns on the mixture dynamics are investigated to reveal the mechanisms of different flow regimes. Pore water pressure field and granular velocity field are in good agreement between our numerical results and experimental observations, which demonstrates the capability of the proposed Eulerian–Lagrangian coupled method in dealing with complex submerged water–granular mixture flows. |
| Freie Schlagworte: | granular column collapse, water–grain mixture flow, Eulerian–Lagrangian coupled method |
| Zusätzliche Informationen: | This article belongs to the Special Issue Novel Numerical Methods for Complicated and Violent Flows |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau 600 Technik, Medizin, angewandte Wissenschaften > 624 Ingenieurbau und Umwelttechnik |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Strömungsdynamik (fdy) Profilbereiche Profilbereiche > Thermo-Fluids & Interfaces |
| Hinterlegungsdatum: | 15 Nov 2023 08:30 |
| Letzte Änderung: | 15 Nov 2023 08:31 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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A Eulerian−Lagrangian Coupled Method for the Simulation of Submerged Granular Column Collapse. (deposited 14 Nov 2023 13:46)
- A Eulerian−Lagrangian Coupled Method for the Simulation of Submerged Granular Column Collapse. (deposited 15 Nov 2023 08:30) [Gegenwärtig angezeigt]
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