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Turbulent Flow of a Suspension of Rigid Spherical Particles in Plane Channels

  • Luca BrandtEmail author
  • Francesco Picano
  • Wim-Paul Breugem
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 165)

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 \(Re=U_0 h/\nu =2800\). We show that considering volume fractions \(\varPhi \le 0.1\) the turbulent flow is similar to the unladen case with higher turbulence intensities. On the contrary, the flow behavior strongly changes at \(\varPhi =0.2\) where the turbulence appears to be attenuated.

Keywords

Direct Numerical Simulation Particle Volume Fraction Turbulent Channel Flow Transitional Flow Dense Case 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This work was supported by the European Research Council Grant No. ERC-2013-CoG-616186, TRITOS and the COST Action MP1315: Flowing matter. The authors acknowledge computer time provided by SNIC (Swedish National Infrastructure for Computing).

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Luca Brandt
    • 1
    Email author
  • Francesco Picano
    • 2
  • Wim-Paul Breugem
    • 3
  1. 1.SeRC (Swedish e-Science Research Centre) and Linné FLOW CentreKTH MechanicsStockholmSweden
  2. 2.Department of Industrial EngineeringUniversity of PadovaPaduaItaly
  3. 3.Aero and Hydrodynamics LaboratoryDelft University of TechnologyDelftThe Netherlands

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