An exact relation between Eulerian and Lagrangian velocity increment statistics

Autor:	Kamps, O., Friedrich, R., Grauer, R.
Rok vydání:	2008
Předmět:	Physics - Fluid Dynamics
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevE.79.066301
Popis:	We present a formal connection between Lagrangian and Eulerian velocity increment distributions which is applicable to a wide range of turbulent systems ranging from turbulence in incompressible fluids to magnetohydrodynamic turbulence. For the case of the inverse cascade regime of two-dimensional turbulence we numerically estimate the transition probabilities involved in this connection. In this context we are able to directly identify the processes leading to strongly non-Gaussian statistics for the Lagrangian velocity increments. Comment: 5 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0809.4339 Zobrazit plný text záznamu View this record from Arxiv