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

• Type: Article in International Scientific Journal
• Date: 1995

Authors

Gama, S (Author) FEUP; Frisch, U (Author) Other

Journal

Title: Computing systems in engineering

Vol. 6 No. 4-5

Pages: 325-329

ISSN: 0956-0521

Publisher: Pergamon Press - Elsevier

Indexing

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Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5