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Lagrangian acceleration statistics in 2D and 3D turbulence

Title data

Kamps, Oliver ; Wilczek, Michael ; Friedrich, Rudolf:
Lagrangian acceleration statistics in 2D and 3D turbulence.
In: Oberlack, Martin ; Peinke, Joachim ; Talamelli, Alessandro ; Castillo, Luciano ; Hölling, Michael (ed.): Progress in Turbulence and Wind Energy IV : Proceedings of the iTi Conference in Turbulence 2010. - Berlin ; Heidelberg : Springer , 2012 . - pp. 67-70 . - (Springer Proceedings in Physics ; 141 )
ISBN 978-3-642-28967-5
DOI: https://doi.org/10.1007/978-3-642-28968-2_14

Abstract in another language

In this paper we compare Lagrangian statistical quantities in the direct energy cascade of three-dimensional turbulence and the corresponding observables for the case of the inverse energy cascade in two dimensions. We focus on the acceleration of a tracer particle along its trajectory. Interpreting the acceleration as a stochastic process we show that for both systems the Markov time scale, which is an indicator for the length of the memory of a stochastic process, is in the order of magnitude of the Lagrangian integral time scale.

Further data

Item Type: Article in a book
Refereed: Yes
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics I > Chair Theoretical Physics I - Univ.-Prof. Dr. Michael Wilczek
Profile Fields > Advanced Fields > Nonlinear Dynamics
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics I
Profile Fields
Profile Fields > Advanced Fields
Result of work at the UBT: No
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 23 Feb 2022 10:38
Last Modified: 23 Feb 2022 10:38
URI: https://eref.uni-bayreuth.de/id/eprint/67570