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Session: Multiphase and non-Newtonian flows 1
Session starts: Wednesday 26 August, 13:30
Presentation starts: 13:45
Room: Room H

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Paolo Gualtieri (Dipartimento di Ingegneria Meccanica e Aerospaziale, Sapienza Universita' di Roma)
Francesco Battista (Dipartimento di Ingegneria Meccanica e Aerospaziale, Sapienza Universita' di Roma)
Carlo Massimo Casciola (Dipartimento di Ingegneria Meccanica e Aerospaziale, Sapienza Universita' di Roma)

Abstract:
This contribution presents a first evaluation of a new approach, dubbed the Exact Regularized Point Particle (ERPP) method [Gualtieri et al., Exact regularized point particle method for multi-phase flows in the two-way coupling regime, arXiv preprint arXiv:1405.6969], designed to model the modulation of turbulence by hundred thousands of small inertial particles. The approach overcomes some intrinsic difficulties which arise in some circumstances in available approaches like, e.g., the Particle In Cell (PIC) method introduced by Crowe and coworkers since 1977. Numerical results concerning a homogeneous shear flow at moderate values of the Reynolds number laden with hundred thousand of small inertial particles are discussed documenting the turbulence modification in the so-called two-way coupling regime, in a range of control parameters unaccessible to the available approaches.