Catálogo de publicaciones - tesis
Título de Acceso Abierto
Inlet turbulence generation for Large Eddy Simulation: applications to fluid-structure interaction problems
Hugo Guillermo Castro Rodrigo Rafael Paz César Aguirre Axel Larreteguy Jorge Delía Victorio Enrique Sonzogni
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Resumen/Descripción – provisto por el repositorio digital
The Large Eddy Simulation (LES) method has become practically a standard approach for the resolution of the Navier-Stokes (NS) equations when the simulation of a turbulent flow is required. This is not only due to the high accuracy and feasibility of LES but also to the growing computational power and affordability that have taken place in recent years. However, there are a number of issues that are still being intensively studied: mesh generation strategies, inlet and boundary conditions, subgrid scale (SGS) models, among others, in order to extend the set of problems that can be solved by LES or to reduce the computational cost involved. This scenario is further complicated if the fluid-structure interaction (FSI) problem is added: coupling algorithm and mesh moving strategy must be defined for every problem. A particular field where the Computational Fluid Dynamics (CFD) and FSI meet is in the road vehicle aerodynamics study. Until recently (and even at present days) it has been preferred the experimental rather than numerical simulation of such problems due to the reliability gained by wind tunnels. Nevertheless, this experimental tool has also shortcomings that can be corrected and even strengths that can be improved by the use of numerical simulation. It is the aim of this thesis to study the applicability of LES on road vehicle aerodynamics including inlet turbulence generation and fluid-structure interaction. In order to do that, a turbulent flow over a simplified car model known as Ahmed’s body is simulated. The results obtained in this work lead to the conclusion that it is possible to analyze the aerodynamic properties of road vehicle models in a complementary way with experimental and computational tools.Palabras clave – provistas por el repositorio digital
Turbulence synthesis; Large eddy simulation; Finite element method; Vehicle aerodynamics; Fluid-structure Interaction; Petsc-Fem; Síntesis de turbulencia; Simulación de grandes escalas; Método de elementos finitos; Aerodinámica vehicular; Interacción fluido-estructura
Disponibilidad
| Institución detectada | Año de publicación | Navegá | Descargá | Solicitá |
|---|---|---|---|---|
| No requiere | 2014 | Biblioteca Virtual de la Universidad Nacional del Litoral (SNRD) |
|
Información
Tipo de recurso:
tesis
Idiomas de la publicación
- inglés
País de edición
Argentina
Fecha de publicación
2014-07-22
