Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/47496
Título: | A sixth-order finite volume scheme for the steady-state incompressible Stokes equations on staggered unstructured meshes |
Autor(es): | Costa, Ricardo Daniel Pereira da Clain, Stéphane Machado, Gaspar J. |
Palavras-chave: | Stokes equations Incompressible fluid Finite volume High-order scheme Preconditioning |
Data: | 2017 |
Editora: | Academic Press |
Revista: | Journal of Computational Physics |
Resumo(s): | We propose a new sixth-order finite volume scheme to solve the bidimensional linear steady-state Stokes problem on staggered unstructured meshes and complex geometries. The method is based on several classes of polynomial reconstructions to accurately evaluate the diffusive fluxes, the pressure gradient, and the velocity divergence. The main difficulty is to handle the div-grad duality to avoid numerical locking and oscillations. A new preconditioning technique based on the construction of a pseudo-inverse matrix is also proposed to dramatically reduce the computational effort. Several numerical simulations are carried out to highlight the performance of the new method. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/47496 |
DOI: | 10.1016/j.jcp.2017.07.047 |
ISSN: | 0021-9991 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito autor |
Aparece nas coleções: | CMAT - Artigos em revistas com arbitragem / Papers in peer review journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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1-s2.0-S0021999117305557-main.pdf Acesso restrito! | 2,16 MB | Adobe PDF | Ver/Abrir |