| Journal: | Journal of the Brazilian Society of Mechanical Sciences |
| Database: | PERIÓDICA |
| System number: | 000312060 |
| ISSN: | 0100-7386 |
| Authors: | Maciel, Edisson Savio de Goes1 Azevedo, Joao Luiz Filgueiras de |
| Institutions: | 1Instituto Tecnologico de Aeronautica, Centro Tecnico Aeroespacial, Sao Jose dos Campos, Sao Paulo. Brasil |
| Year: | 2001 |
| Volumen: | 23 |
| Number: | 2 |
| Pages: | 155-178 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | Products developed at industries, institutes and research centers are expected to have high level of quality and performance, having a minimum waste, which require efficient and robust tools to numerically simulate stringent project conditions with great reliability. In this context, Computational Fluid Dynamics (CFD) plays an important role and the present work shows two numerical algorithms that are used in the CFD community to solve the Euler and Navier-Stokes equations applied to typical aerospace and aeronautical problems. Particularly, unstructured discretization of the spatial domain has gained special attention by the international community due to its ease in discretizing complex spatial domains. This work has the main objective of illustrating some advantages and disadvantages of numerical algorithms using structured and unstructured spatial discretization of the flow governing equations. Numerical methods include a finite volume formulation and the Euler and Navier-Stokes equations are applied to solve a transonic nozzle problem, a low supersonic airfoil problem and a hypersonic inlet problem. In a structured context, these problems are solved using MacCormack’s implicit algorithm with Steger and Warming’s flux vector splitting technique, while, in an unstructured context, Jameson and Mavriplis’ explicit algorithm is used. Convergence acceleration is obtained using a spatially variable time stepping procedure |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería de transportes, Ingeniería mecánica, Euler, Ecuaciones de Navier-Stokes, Ecuaciones, Aeroespacio, Toberas, Esquema de MacCormack, Esquema de Jameson y Mavriplis, Vectores, Flujo |
| Keyword: | Engineering, Mechanical engineering, Transportation engineering, Euler, Navier-Stokes equations, Equations, Aerospace, Nozzles, MacCormack scheme, James and Mavriplis scheme, Vectors, Flux |
| Full text: | Texto completo (Ver HTML) |
