Negative Isotropic Eddy Viscosity: A Common Phenomenon in two Dimensions

• Type: Chapter or Part of a Book
• Date: 1995

Authors

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

Book

Title: Navier—Stokes Equations and Related Nonlinear Problems

Pages: 351-355

ISBN: 978-1-4899-1417-0

Indexing

ISI Web of Knowledge

Other information

Authenticus ID: P-00H-0AF

DOI: 10.1007/978-1-4899-1415-6_28

Resumo (PT): We show the existence of two-dimensional flows having an isotropic and negative eddy viscosity. Such flows, when subject to a very weak large-scale perturbation of wavenumber k will amplify it isotropically with a rate proportional to K^2.

Language: English

Type (Professor's evaluation): Scientific