The two-dimensional Navier-Stokes-Kuramoto-Sivashinsky equation on the connection machine

• Tipo: Artigo em Revista Científica Internacional
• Data: 1995

Autores

Gama, S (Autor) FEUP; Frisch, U (Autor) Outra

Revista

Título: Computing systems in engineering

Vol. 6 Nº 4-5

Páginas: 325-329

ISSN: 0956-0521

Editora: Pergamon Press - Elsevier

Indexação

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Outras Informações

ID Authenticus: P-001-GGT

DOI: 10.1016/0956-0521(95)00027-5

Abstract (EN): The two-dimensional Navier-Stokes equations with a large scale instability of the Kuramoto-Sivashinsky type, describing marginally negative eddy viscosity situations, is simulated on a Connection Machine CM-2. Up to millions of time steps at the resolution 256(2) and tens of thousands at the resolution 1024(2) are performed. A linear growth phase, a disorganized inverse cascade phase and a structured vortical phase are successively observed. In the vortical phase monopolar and multipolar structures are proliferating and display strongly depleted nonlinearities.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5