An energy-preserving level set method for multiphase flows
The computation of multiphase flows presents a subtle energetic equilibrium between potential (i.e., surface) and kinetic energies. The use of traditional interface-capturing schemes provides no control over such a dynamic balance. In the spirit of the well-known symmetry-preserving and mimetic sche...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/173468 |
| Acceso en línea: | https://hdl.handle.net/2117/173468 https://dx.doi.org/10.1016/j.jcp.2019.108991 |
| Access Level: | acceso abierto |
| Palabra clave: | Multiphase flow Level set methods Power transmission Symmetry-preserving Mimetic Conservative level set Energy-preserving Flux multifàsic Corbes de nivell, Mètodes de Energia mecànica -- Transmissió Àrees temàtiques de la UPC::Física::Termodinàmica |
| Sumario: | The computation of multiphase flows presents a subtle energetic equilibrium between potential (i.e., surface) and kinetic energies. The use of traditional interface-capturing schemes provides no control over such a dynamic balance. In the spirit of the well-known symmetry-preserving and mimetic schemes, whose physics-compatible discretizations rely upon preserving the underlying mathematical structures of the space, we identify the corresponding structure and propose a new discretization strategy for curvature. The new scheme ensures conservation of mechanical energy (i.e., surface plus kinetic) up to temporal integration. Inviscid numerical simulations are performed to show the robustness of such a method. |
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