Statistical properties of passive tracers in a positive four-point vortex model

• Type: Article in International Scientific Journal
• Date: 2000

Authors

Sílvio Gama (Author) FCUP; Paula Milheiro Oliveira (Author) FEUP

Journal

The Journal is awaiting validation by the Administrative Services.

Title: PHYSICAL REVIEW E

Vol. 62 No. 1 B

Pages: 1424-1426

ISSN: 2470-0045

Indexing

ISI Web of Knowledge - 4 Citations

ISI Web of Science

Scopus - 6 Citations

Scientific classification

CORDIS: Physical sciences > Mathematics > Computational mathematics > Computational models ; Physical sciences > Mathematics > Applied mathematics > Numerical analysis ; Physical sciences > Physics > Mathematical physics ; Physical sciences > Mathematics > Statistics

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-000-ZPQ

DOI: 10.1103/physreve.62.1424

Abstract (EN): Stochastic properties of systems formed by many passive particles conducted by four vertices, each one with positive circulation, are investigated. A statistical chi(2) test is developed in order to study the spatial distribution of particles in the chaotic background (lambda(L) > 0). The fact that the uniform distribution is an invariant measure of the spatial distribution of particles is used to debug the chi(2) test. This procedure is applied in the same conditions as described in Babiano et al. in order to study the uniformity of passive particles. It is observed that uniformity is not attained up to times of order 10(5) natural time unity, when either a Gaussian or a uniform initial distribution is considered in a small region away from the vortices.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 3