Baza Publikacji Pracowników Politechniki Lubelskiej

Status:
Autorzy:	Komorowski Tomasz, Nieznaj Ernest
Rok wydania:	2008
Wersja dokumentu:	Drukowana \| Elektroniczna
Język:	angielski
Numer czasopisma:	24
Wolumen/Tom:	237
Strony:	3377 - 3381
Impact Factor:	1,926
Web of Science® Times Cited:	2
Scopus® Cytowania:	2
Bazy:	Web of Science \| Scopus
Efekt badań statutowych	NIE
Materiał konferencyjny:	NIE
Publikacja OA:	NIE
Abstrakty:	angielski
	In this note we consider a passive tracer model describing particle dispersion in a turbulent flow. The trajectory of the particle is given by the solution of an ordinary differential equation , , where is a divergence-free, random vector field that is spatially homogeneous and isotropic. We show that trajectories of the tracer display superdiffusive behavior when the random velocity decorrelates, at large distances, but does it not rapidly but rather at some moderate rate. The main tools used in the proofs are variational principles and Tauberian-type theorems. Previous article in issue

On superdiffusive behavior of a passive tracer in a random flow