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

We conduct numerical experiments to investigate the spatial clustering ofparticles and bubbles in simulations of homogeneous and isotropic turbulence.Varying the Stokes parameter and the densities, striking differences in theclustering of the particles can be observed. To quantify these visual findingswe use the Kaplan--Yorke dimension. This local scaling analysis shows adimension of approximately 1.4 for the light bubble distribution, whereas thedistribution of very heavy particles shows a dimension of approximately 2.4.However, clearly separate parameter combinations yield the same dimensions. Toovercome this degeneracy and to further develop the understanding ofclustering, we perform a morphological (geometrical and topological) analysisof the particle distribution. For such an analysis, Minkowski functionals havebeen successfully employed in cosmology, in order to quantify the globalgeometry and topology of the large-scale distribution of galaxies. In thecontext of dispersed multiphase flow, these Minkowski functionals -- beingmorphological order parameters -- allow us to discern the filamentary structureof the light particle distribution from the wall-like distribution of heavyparticles around empty interconnected tunnels.

Dimensionality and morphology of particle and bubble clusters in turbulent flow