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Partic. vol. 39 pp. 78-87 (August 2018)
doi: 10.1016/j.partic.2017.09.008

Modeling of two-phase particulate flows in a confined jet with a focus on two-way coupling

Babak Yousefi-Lafourakia,*, Abas Ramiarb,*, Ali Akbar Ranjbarb

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    • Nanofluid flow in an impinging jet was simulated using Eulerian–Lagrangian model. • Simulation showed that particles rebounded from wall surface upon impact, no sticking occurred. • Mixture model may provide misleading results at the stagnation points of impinging jets.


A computational fluid dynamics model is used for the simulation of laminar flow of water–Al2O3 nanofluid in a confined slot impinging jet. The (steady-state and two-dimensional) Eulerian–Lagrangian model is used considering fluid–particle and particle–wall interactions (i.e., two-way coupling). A collocated grid and the SIMPLE algorithm are used for the coupling of pressure and velocity fields. The deposition model is used to investigate the effect of particle deposition on the impingement surface. Results indicate that the particle trajectory becomes stable farther from the jet with a rising Reynolds number and jet-impingement surface distance ratio. The heat transfer coefficient of the mixture model is higher than that of the Eulerian–Lagrangian model.

Graphical abstract


Eulerian–Lagrangian approach; Two-way coupling; Particle tracing; Mixture model