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The Motion of Settling Particles in Isotropic Turbulence: Filtering Impact and Kinematic Simulations as Subfilter Model

  • J. PozorskiEmail author
  • B. Rosa
Conference paper
Part of the ERCOFTAC Series book series (ERCO, volume 25)

Abstract

Turbulent two-phase flows with small particles are quite common in environmental and industrial contexts. The dispersed phase is involved in a range of phenomena, including preferential concentration, collisions/agglomeration, and wall deposition. In computations of practical flow cases, beyond relatively low Reynolds numbers and simple geometries, DNS reveals to be overly expensive, even in the point-particle approximation with the one-way momentum coupling. Therefore, LES has gained more and more interest over the years. When feasible, the LES becomes particularly well suited for situations where the solution of instantaneous eddy structures is crucial for the prediction of the particulate phase. The subgrid scales (SGS) may have an impact on the motion of particles, especially those of lower inertia.

Notes

Acknowledgements

The work was supported by the National Science Centre (NCN, Poland), project 2011/03/B/ST8/05677 and ICM (Warsaw University), grants G56-25 and G49-15.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Institute of Fluid Flow Machinery (IMP PAN)GdańskPoland
  2. 2.Institute of Meteorology and Water anagement – National Research Institute (IMGW-PIB)WarsawPoland

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