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Exact regularized point particle method for particle-laden flows in the two-way coupling regime

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.1370
pages 1342-1351

Paolo Gualtieri
Dipartimento di Ingegneria Meccanica e Aerospaziale, 'Sapienza' University, Via Eudossiana 18, 00184 Roma, Italy

Francesco Picano
Department of Mechanics and Aeronautics, "Sapienza" University of Rome, Via Eudossiana 18, 00184 Rome, Italy; KTH, Department of Mechanics SE-100 44 Stockholm, Sweden; Department of Industrial Engineering University of Padova Via Venezia 1, 35131, Padova, Italy

G. Sardina
Department of Mechanics and Aeronautics, "Sapienza" University of Rome, Via Eudossiana 18, 00184 Rome; UKE - Università Kore di ENNA Facoltà di Ingegneria, Architettura e Scienze Motorie, Via delle Olimpiadi, 94100 Enna, Italy

Carlo M. Casciola
Department of Mechanics and Aeronautics, 'Sapienza' University of Rome, Via Eudossiana 18, 00184 Rome, Italy

Sinopsis

In this paper we present a new methodology which is proved to capture the momentum exchange between a carrier turbulent flow and thousands of sub-Kolmogorov inertial particles. The velocity disturbance produced by the disperse phase is described in terms of exact regularized unsteady Stokes solutions. The approach is validated by addressing the motion of a single particle in still fluid and by comparing data of actual turbulent spatially homogeneous flows against results provided by the classical particle-in-cell method.

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