Interaction Particle - Turbulence in Dispersed Two-Phase Flows Using the Eulerian - Lagrangian Approach

Mergheni, Mohamed Ali; Ticha, Hmaied Ben; Sautet, Jean-Charles; Nasrallah, Sassi Ben

doi:10.1615/interjfluidmechres.v35.i3.50

Cited by 2 publications

(1 citation statement)

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“…The Eulerian-Lagrangian approach takes the mass, momentum, energy, and compositional exchange between discrete and continuous phases through the physical properties of individual droplets into account. Through the two-way coupling method, researchers considered the interaction between the two phases in the modeling [12][13][14][15]. Yang et al [16] proposed a coating film-forming model based on the Euler-Lagrangian method and established a Rosin-Rammler atomization model.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Characteristics of Airless Spray Film Formation

Yang

Chen

et al. 2022

Coatings

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Based on the computational fluid dynamics (CFD) theory, this paper proposes a film formation model and a numerical simulation method that can be used in thickness prediction of airless spraying robots. The spraying flow field and the film formation process in the airless spraying process were simulated by the Eulerian–Eulerian approach, and the airless spraying film formation model including the paint expansion model and the wall hitting model was established. To verify the correctness of the model, numerical simulations of static spraying and dynamic spraying were carried out on the plane and arc surfaces. The simulation results showed that the width of the spraying flow field on the far wall increased linearly with the longitudinal distance in the major-axis direction. The busbar spraying on the outer surface of the arc surface showed the similar characteristics to the plane in the major-axis direction. Besides, the annular spraying was similar to the plane spraying in the minor-axis direction, but the inner surface spraying was completely opposite. When spraying the outer surface, the film thickness increased with the increase of the inner diameter but was smaller than that of the plane spraying, while the inner surface spraying was completely opposite. In the spraying experiment, the plane dynamic spraying and the arc plane inner and outer surface translation spraying were selected for verification. The experimental results were in good agreement with the simulation results, indicating that the film formation model of airless spraying established in this paper is basically correct. As a result, this model can be used for thickness prediction of spraying robots.

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Section: Introductionmentioning

confidence: 99%

Modeling and Characteristics of Airless Spray Film Formation

Yang

Chen

et al. 2022

Coatings

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Numerical simulation of sudden-expansion particle-laden flows using the Eulerian lagrangian approach

Mergheni¹,

Sautet²,

Ticha³

et al. 2012

THERM SCI

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A Lagrangian-Eulerian model for the dispersion of solid particles in sudden-expansion flows is reported and validated. The fluid was calculated based on the Eulerian approach by solving the Navier-Stokes equations. A Lagrangian model is also applied, using a Runge-Kutta method to obtain the particle trajectories. The effect of fluid turbulence upon particle dispersion is taken into consideration through a statistical model. The predicted axial mean velocity and turbulent kinetic energy of both phases agree well with experimental data reported by Sommerfield

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Interaction Particle - Turbulence in Dispersed Two-Phase Flows Using the Eulerian - Lagrangian Approach

Cited by 2 publications

References 0 publications

Modeling and Characteristics of Airless Spray Film Formation

Modeling and Characteristics of Airless Spray Film Formation

Numerical simulation of sudden-expansion particle-laden flows using the Eulerian lagrangian approach

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