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New insights into the fine-scale structure of turbulence

Title data

Wilczek, Michael:
New insights into the fine-scale structure of turbulence.
In: Journal of Fluid Mechanics. Vol. 784 (2015) . - pp. 1-4.
ISSN 0022-1120
DOI: https://doi.org/10.1017/jfm.2015.536

Abstract in another language

In a recent study, Lawson & Dawson ( J. Fluid Mech. , vol. 780, 2015, pp. 60–98) present experimental results on the fine-scale structure of turbulence, which are obtained with a novel variant of particle image velocimetry, to elucidate the relation between the small-scale structure, dynamics and statistics of turbulence. The results are carefully validated against direct numerical simulation data. Their extensive study focuses on the mean structure of the velocity gradient and the pressure Hessian fields for various small-scale flow topologies. It thereby reveals the dynamical impact of turbulent strain and vorticity structures on the velocity gradient statistics through non-local interactions, and points out ways to improve low-dimensional closure models for the dynamics of small-scale turbulence.

Further data

Item Type: Article in a journal
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
Result of work at the UBT: No
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 23 Feb 2022 13:04
Last Modified: 23 Feb 2022 13:04
URI: https://eref.uni-bayreuth.de/id/eprint/67588