| Revista: | Journal of the Brazilian Society of Mechanical Sciences and Engineering |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000312225 |
| ISSN: | 1678-5878 |
| Autores: | Elias, R.N1 Coutinho, A.L.G.A Martins, M.A.D |
| Instituciones: | 1Universidade Federal do Rio de Janeiro, Departamento de Engenharia Civil, Rio de Janeiro. Brasil |
| Año: | 2004 |
| Periodo: | Jul-Sep |
| Volumen: | 26 |
| Número: | 3 |
| Paginación: | 330-339 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental |
| Resumen en inglés | The finite element discretization of the incompressible steady-state Navier-Stokes equations yields a non-linear problem, due to the convective terms in the momentum equations. Several methods may be used to solve this non-linear problem. In this work we study Inexact Newton-type methods, associated with the SUPG/PSPG stabilized finite element formulation. The resulting systems of equations are solved iteratively by a preconditioned Krylov-space method such as GMRES. Numerical experiments are shown to validate our approach. Performance of the nonlinear strategies is accessed by numerical tests. We concluded that Inexact Newton-type methods are more efficient than conventional Newton-type methods |
| Disciplinas: | Matemáticas, Física y astronomía |
| Palabras clave: | Matemáticas aplicadas, Dinámica de fluidos, Método de Newton-Krylov, Ecuaciones de Navier-Stokes, Flujo de fluidos, Fluido incompresible, Problemas no lineales |
| Keyword: | Mathematics, Physics and astronomy, Applied mathematics, Fluid dynamics, Newton-Krylov method, Navier-Stokes equations, Fluid flow, Incompressible fluid, Nonlinear problems |
| Texto completo: | Texto completo (Ver HTML) |
