Numerical simulation of three-dimensional flows over aerospace configurations.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2002

RESUMO

The objective of this project is to study three dimensional aerodynamic flows over realistic aerospace configurations, such as the first Brazilian Satellite Launcher (VLS) in its first stage flight form. In order to achieve this objective, computational fluid dynamics and three dimensional adaptive mesh refinement techniques are used. The project focus in finite element and finite volume techniques to simulate the flows of interest. Both the Taylor-Galerkin finite element method and the Jameson finite volume method are used in the simulations. A new interpretation of MacCormack s method in an unstructured grid context is presented. The analysis, implementation and validation of the adaptive mesh refinement tools in the present context is part of the work developed. The use of meshes with hanging-nodes in a finite volume code is also described. The Spalart and Allmaras turbulence model is implemented in the finite volume code in order to account for turbulent effects. In the first part of this project, inviscid flows over the VLS ranging from subsonic to supersonic regime are studied using the finite element and finite volume techniques and, in the following part, turbulent viscous flow cases are analyzed using the finite volume code.

ASSUNTO(S)

veÃculos de lanÃamento satÃlites escoamento de fluidos escoamento viscoso escoamento turbulento anÃlise numÃrica mÃtodos de multigrid configuraÃÃes aerodinÃmicas mÃtodo de volumes finitos dinÃmica dos fluidos computacional mÃtodo de elementos finitos estruturas tridimensionais

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