Lagrangian versus Eulerian integration errors
The possibility to use a Lagrangian frame to solve problems with large time-steps was successfully explored previously by the authors for the solution of homogeneous incompressible fluids and also for solving multi-fluid problems (Idelsohn etal. 2012; 2014; 2013). The strategy used by the authors wa...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/38235 |
| Acceso en línea: | http://hdl.handle.net/11336/38235 |
| Access Level: | acceso abierto |
| Palabra clave: | Incompressible Navier-Stokes Equations Lagrange Formulations Multi-Fluids Flows Numerical Integration Errors Particle Methods https://purl.org/becyt/ford/2.3 https://purl.org/becyt/ford/2 https://purl.org/becyt/ford/1.2 https://purl.org/becyt/ford/1 |
| Sumario: | The possibility to use a Lagrangian frame to solve problems with large time-steps was successfully explored previously by the authors for the solution of homogeneous incompressible fluids and also for solving multi-fluid problems (Idelsohn etal. 2012; 2014; 2013). The strategy used by the authors was named Particle Finite Element Method second generation (PFEM-2).The objective of this paper is to demonstrate in which circumstances the use of a Lagrangian frame with particles is more accurate than a classical Eulerian finite element method, and when large time-steps and/or coarse meshes may be used. |
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