English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The rotational dynamics of anisotropic particles advected in a turbulentfluid flow are important in many industrial and natural setting. Particlerotations are controlled by small scale properties of turbulence that arenearly universal, and so provide a rich system where experiments can bedirectly compared with theory and simulations. Here we report the firstthree-dimensional experimental measurements of the orientation dynamics ofrod-like particles as they are advected in a turbulent fluid flow. We alsopresent numerical simulations that show good agreement with the experiments andallow extension to a wide range of particle shapes. Anisotropic tracerparticles preferentially sample the flow since their orientations becomecorrelated with the velocity gradient tensor. The rotation rate is heavilyinfluenced by this preferential alignment, and the alignment depends stronglyon particle shape.

Rotation Rate of Rods in Turbulent Fluid Flow