Numerical modeling of spray secondary atomization with the Euler-Eulerian multi-fluid approach

Pađen, Ivan; Petranović, Zvonimir; Edelbauer, Wilfried; Vujanović, Milan

doi:10.1016/j.compfluid.2021.104919

Cited by 11 publications

(3 citation statements)

References 22 publications

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“…[87], they combined full region air flow simulations from the nozzle exit up to the target with experimentally obtained initial conditions for the droplet size distributions and the droplet velocities near the nozzle as a compromise, because the primary phase of liquid disintegration and droplet formation cannot be simulated. This was the main research scheme that most of the researchers used in those years, and even up to now [93][94][95][96]; namely, relevant parameters such as spray particle size and velocity were measured experimentally and then used as initial and boundary conditions for the film formation model. Instead, with the continuous progress of CFD technology, the future use of accomplishing the whole process of numerical simulation of airless spraying from the initial atomization to the adhesion of film formation will definitely be a more advanced, more efficient and more promising research program.…”

Section: Research On Film Formation Characteristics and Mechanismsmentioning

confidence: 99%

A Review of the Developments of the Characteristics and Mechanisms of Airless Spraying on Complex Surfaces

Wu,

Chen,

Liu

et al. 2023

Coatings

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The special surface appearance of complex surfaces restricts the coating film quality of spraying. The study of the atomization and film formation characteristics of typical complex surfaces, as well as the spraying mechanism, is essential for planning the spraying robotic trajectory and improving the spraying efficiency. In this paper, modeling and characteristics of the atomization and film formation process, based on CFD numerical simulations in previous studies, are systematically reviewed, focusing especially on airless spraying. In addition, the advantages and disadvantages of the existing research from the perspective of numerical models and methods are discussed. Finally, a further research direction for spraying on complex surface is prospected. Overall, a comprehensive and up-to-date review of spray atomization and film formation characteristics is considered valuable to practitioners and researchers in these fields, and will facilitate the further application of robotic spraying in the mechanical, automotive, marine, aerospace, petrochemical and other industries.

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Section: Research On Film Formation Characteristics and Mechanismsmentioning

confidence: 99%

A Review of the Developments of the Characteristics and Mechanisms of Airless Spraying on Complex Surfaces

Wu,

Chen,

Liu

et al. 2023

Coatings

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“…In this work, the WAVE model is further upgraded by adding a probability distribution for the mass transfer to the child droplet classes. The implementation was done following the procedure described by [63]. In [63], the authors presented that this approach prevents the Eulerian multi-fluid model from overestimating the generation of small droplets.…”

Section: Breakup Modelmentioning

confidence: 99%

“…The implementation was done following the procedure described by [63]. In [63], the authors presented that this approach prevents the Eulerian multi-fluid model from overestimating the generation of small droplets. The distribution function smears the transfer of mass to multiple child droplet classes.…”

Section: Breakup Modelmentioning

confidence: 99%

A Eulerian Multi-Fluid Model for High-Speed Evaporating Sprays

Keser

Battistoni

et al. 2021

Processes

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Advancements in internal combustion technology, such as efficiency improvements and the usage of new complex fuels, are often coupled with developments of suitable numerical tools for predicting the complex dynamic behavior of sprays. Therefore, this work presents a Eulerian multi-fluid model specialized for the dynamic behavior of dense evaporating liquid fuel sprays. The introduced model was implemented within the open-source OpenFOAM library, which is constantly gaining popularity in both industrial and academic settings. Therefore, it represents an ideal framework for such development. The presented model employs the classes method and advanced interfacial momentum transfer models. The droplet breakup is considered using the enhanced WAVE breakup model, where the mass taken from the parent droplets is distributed among child classes using a triangular distribution. Furthermore, the complex thermal behavior within the moving droplets is considered using a parabolic temperature profile and an effective thermal conductivity approach. This work includes an uncertainty estimation analysis (for both spatial and temporal resolutions) for the developed solver. Furthermore, the solver was validated against two ECN Spray A conditions (evaporating and non-evaporating). Overall, the presented results show the capability of the implemented model to successfully predict the complex dynamic behavior of dense liquid sprays for the selected operating conditions.

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Simulation and Analysis of Atomization Performance of a Venturi Jet Pyrolysis Reactor

Sun

Chen

et al. 2023

Metall Mater Trans B

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Numerical modeling of spray secondary atomization with the Euler-Eulerian multi-fluid approach

Cited by 11 publications

References 22 publications

A Review of the Developments of the Characteristics and Mechanisms of Airless Spraying on Complex Surfaces

A Review of the Developments of the Characteristics and Mechanisms of Airless Spraying on Complex Surfaces

A Eulerian Multi-Fluid Model for High-Speed Evaporating Sprays

Simulation and Analysis of Atomization Performance of a Venturi Jet Pyrolysis Reactor

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