Simulation of particle-to-particle interactions in gas solid flows

Oesterlé, B.; Petitjean, Alain

doi:10.1016/0301-9322(93)90033-q

Cited by 154 publications

(68 citation statements)

References 24 publications

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“…In this study, the stochastic collision model of Oesterle and Petitjean [21] is used. This theoretical model is based on a Langrangian approach to calculate the particle trajectories.…”

Section: Motivationmentioning

confidence: 99%

Stochastic Modeling of Fluidized Bed Granulation: Influence of Droplet Pre‐Drying

2011

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A stochastic Monte Carlo method was used to solve the population dynamics of fluidized-bed granulation. Special emphasis was put on the addition of liquid to the process and on the microprocess of droplet pre-drying. Pre-drying can occur during the flight of droplets from the tip of the nozzle to the fluidized bed, especially in top-spray configuration. A single-droplet drying model that considers the change of droplet diameter and of the radial concentration profile of binder in the droplet was developed and validated by experiments in an acoustic levitator. Combined with spray flow field considerations, this model can be used to retrieve an initial droplet diameter from spray measurements. Integrated in the Monte Carlo simulation, it shows that pre-drying can significantly decrease the agglomeration rate due to overspray and premature solidification instead of successful droplet deposition.

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“…In this study, the stochastic collision model of Oesterle and Petitjean [21] is used. This theoretical model is based on a Langrangian approach to calculate the particle trajectories.…”

Section: Motivationmentioning

confidence: 99%

Stochastic Modeling of Fluidized Bed Granulation: Influence of Droplet Pre‐Drying

2011

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“…A stochastic approach for inter-particle collisions is for example the Monte-Carlo method introduced by Ogawa (1983) or the so-called direct simulation Monte-Carlo (DSMC) method introduced by Tsuji (1993), which are both based on procedures to simulate the Boltzmann equation. Inter-particle collisions in dilute phase pneumatic conveying by applying a stochastic model in the frame of the Euler/Lagrange approach were considered in the work of Sommerfeld and Zivkovic (1992) and Oesterlè and Petitjean (1993). Such a stochastic collision model is computationally very efficient and does not require information on the location and motion of neighbouring particles in order to decide whether a collision occurs.…”

Section: Introductionmentioning

confidence: 99%

Study of four-way coupling on turbulent particle-laden jet flows

Laı́n

Garcı́a

2006

Chemical Engineering Science

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“…The turbulent effect on the collisions, which is an important issue under turbulent flow conditions, is also not discussed in this method. As a more reasonable modeling, fictitious collision partners are used by Oesterle and Petitjean, 15 Berlemont et al, 14 Sommerfeld, 16 and so on. Among them, Sommerfeld's model has been widely used, 18 in which when a collision occurs, a fictitious second particle is generated according to the local probability density functions of particle diameters and velocities.…”

Section: Introductionmentioning

confidence: 99%

An industry-scale modeling for the turbulence agglomeration of fine particles

Shen

Wang

2015

Advances in Mechanical Engineering

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Turbulence-induced agglomeration of fine particles/droplets in aerosol is important in various industrial and natural processes. Despite abundant theoretical and numerical studies on turbulent collision kernels, convincing numerical methods for industry-scale applications are still lacking. In this work, we develop a mixed Eulerian-Lagrangian model for the modeling of turbulence-induced agglomeration of fine particles/droplets. As advantages over Sommerfeld's model, the present model searches for real collision pairs based on a new mesh-independent method and uses appropriate turbulent collision kernels to calculate the collision frequencies. Benchmark simulations are carried out and compared with the results provided by the well-characterized experiment by Duru et al.

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Simulation of particle-to-particle interactions in gas solid flows

Cited by 154 publications

References 24 publications

Stochastic Modeling of Fluidized Bed Granulation: Influence of Droplet Pre‐Drying

Stochastic Modeling of Fluidized Bed Granulation: Influence of Droplet Pre‐Drying

Study of four-way coupling on turbulent particle-laden jet flows

An industry-scale modeling for the turbulence agglomeration of fine particles

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