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2021 | OriginalPaper | Buchkapitel

Influence of Particle Anisotropy and Motility on Preferential Concentration in Turbulence

verfasst von : Cristian Marchioli, Harshit Bhatia, Diego Dotto

Erschienen in: Turbulence and Interactions

Verlag: Springer International Publishing

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Abstract

The simplest numerical framework to study turbulent particle dispersion assumes that particles can be modeled as point-like spheres brought about by the flow. In spite of its simplicity, this framework has led to significant advancements in the study of particle-turbulence interactions. In this paper we examine how particle dispersion in dilute turbulent suspensions changes when particles are non-spherical (elongated) and may actively move within the fluid (motile). In particular, we show how elongation and motility add to particle inertia to modulate preferential concentration. Results for particles suspended in wall-bounded turbulence are presented to highlight effects on wall accumulation and segregation, which represent the macroscopic manifestation of preferential concentration.

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Vorheriges Kapitel A Volume-of-Fluid Dual-Scale Approach for Simulating Turbulent Liquid/Gas Interactions

Nächstes Kapitel Reference Solutions and URANS Model Characterization for Turbulent Forced Convection Around Heated Square Cylinders

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Titel: Influence of Particle Anisotropy and Motility on Preferential Concentration in Turbulence
verfasst von: Cristian Marchioli
Harshit Bhatia
Diego Dotto
Verlag: Springer International Publishing
Buch: Turbulence and Interactions
Print ISBN: 978-3-030-65819-9

Electronic ISBN: 978-3-030-65820-5

Copyright-Jahr: 2021
DOI: https://doi.org/10.1007/978-3-030-65820-5_5

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