Numerical study of Petrov-Galerkin formulations for the shallow water wave equations



Título del documento: Numerical study of Petrov-Galerkin formulations for the shallow water wave equations
Revista: Journal of the Brazilian Society of Mechanical Sciences
Base de datos: PERIÓDICA
Número de sistema: 000312018
ISSN: 0100-7386
Autores: 1
2
Instituciones: 1Universidade Santa Ursula, Rio de Janeiro. Brasil
2Ministerio da Ciencia e Tecnologia, Laboratorio Nacional de Computacao Cientifica, Petropolis, Rio de Janeiro. Brasil
Año:
Volumen: 22
Número: 2
Paginación: 231-247
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico
Resumen en inglés The behavior of Petrov-Galerkin formulations for shallow water wave equations is evaluated numerically considering typical one-dimensional propagation problems. The formulations considered here use stabilizing operators to improve classical Galerkin approaches. Their advantages and disadvantages are pointed out according to the intrinsic time scale (free parameter) which has a particular importance in this kind of problem. The influence of the Courant number and the performance of the formulation in dealing with spurious oscillations are adressed
Disciplinas: Física y astronomía,
Ciencias de la computación
Palabras clave: Dinámica de fluidos,
Aguas someras,
Ecuaciones,
Ondas,
Elementos finitos,
Petrov-Galerkin
Keyword: Physics and astronomy,
Computer science,
Fluid dynamics,
Shallow waters,
Equations,
Waves,
Finite elements,
Petrov-Galerkin
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