Turbulent flow of a suspension of rigid spherical particles in plane channels

Luca Brandt, Francesco Picano, Wim Paul Breugem

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

Suspensions of solid particles are frequently found in applications and environmental flows. Several studies concern the rheological properties of suspensions in laminar flows, but much less is known of turbulent suspensions. The present work fills this gap providing DNS data on dense suspensions of neutrally-buoyant rigid sphere in a turbulent channel flow at the bulk Reynolds number of Re = U0h/ν = 2800. We show that considering volume fractions Φ ≤ 0.1 the turbulent flow is similar to the unladen case with higher turbulence intensities. On the contrary, the flow behavior strongly changes at Φ = 0.2where the turbulence appears to be attenuated.

Original languageEnglish
Title of host publicationProgress in Turbulence VI
Subtitle of host publicationProceedings of the iTi Conference on Turbulence 2014
EditorsJ. Peinke, G. Kampers, M. Oberlack, M. Wacławczyk, A. Talamelli
Place of PublicationCham, Switzerland
PublisherSpringer
Pages311-315
ISBN (Print)9783319291291
DOIs
Publication statusPublished - 2016
Event6th International Conference on Progress in Turbulence, iTi 2014 - Warsaw, Poland
Duration: 29 Aug 201429 Aug 2014

Publication series

NameSpringer Proceedings in Physics
PublisherSpringer
Volume165

Conference

Conference6th International Conference on Progress in Turbulence, iTi 2014
CountryPoland
CityWarsaw
Period29/08/1429/08/14

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