Validation of the VOF method for liquid spray process simulation from a pressure-swirl atomizer

Gurakov, N. I.; Zubrilin, Ivan A.; Abrashkin, V. Yu.; Morales, M. Hernandez; Yakushkin, D. V.; Yastrebov, V. V.; Kolomzarov, O. V.; Idrisov, D. V.

doi:10.1063/5.0033854

Cited by 8 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In comparison, the interface-tracking approach, VOF (volume of fluid), is more competent for paint atomization modeling. The VOF method computes the volume fraction of a particular phase and is naturally volume-conserved, it can track interface location and topology as accurately as possible, and has been widely used in fuel injection modeling [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

An Atomization Model of Air Spraying Using the Volume-of-Fluid Method and Large Eddy Simulation

Yan

Chen

Chen³

et al. 2021

Coatings

View full text Add to dashboard Cite

When painting complex surfaces, such as large-curvature surfaces, poor coating quality is often obtained, which may be caused by lack of an appropriate atomization model, insufficient understanding of atomization mechanisms and laws, and improper painting parameters. This paper presents a numerical model of paint atomization of air spraying using the volume-of-fluid method and large eddy simulation. The interface capture and the turbulent flow were mainly considered in the model: the former was tracked by the volume-of-fluid method and the latter was predicted by the large eddy simulation. After the computational domain being meshed by the staggered-grid method, the governing equations were discretized by the finite volume method and were solved by the SIMPLE (Semi-Implicit Method for Pressure-Linked Equations) Consistent algorithm. The results of numerical simulations show that the characteristics of atomization flow field, such as velocity variation, pressure distribution, and paint volume fraction are in agreement with the regularities of atomization. Moreover, the primary and secondary atomization phenomena can be clearly observed: as soon as the paint issues from the nozzle, the paint flow begins to distort and the paint fragments continuously eject from the main paint flow and then these paint fragments distort and disintegrate into smaller elements. A comparison with the experimental data from the literature proves that the model of the whole atomization process of air spray is effective. The model is suitable for simulating the whole atomization process and easy to obtain initial conditions, which can be applied to set the appropriate painting parameters and study paint atomization mechanisms and laws in depth.

show abstract

Section: Introductionmentioning

confidence: 99%

An Atomization Model of Air Spraying Using the Volume-of-Fluid Method and Large Eddy Simulation

Yan

Chen

Chen³

et al. 2021

Coatings

View full text Add to dashboard Cite

show abstract

Numerical investigation of the impact of fuel temperature on spray characteristics in a pressure-swirl atomizer with spiral path

Aminjan,

Sedaghat,

Heidari

et al. 2024

Exp. Comput. Multiph. Flow

View full text Add to dashboard Cite

Numerical and experimental study of wire mesh in the swirl effervescent atomization

Xie,

Liu,

Huo

et al. 2023

Physics of Fluids

View full text Add to dashboard Cite

Effervescent atomization is widely used in industrial, agricultural, and national defense fields because of its low energy consumption. Quality improvement to spray has been pursued for decades as an important goal without increasing energy consumption. To investigate the relationship between the internal flow and spray characteristic, a swirl effervescent atomizer coupled with a wire mesh was designed in this paper. The effect of wire mesh on spray characteristics and internal flow with different structural parameters was investigated. The experimental results showed that the spray quality (small droplet diameter and stable atomization) was improved by installing a wire mesh in the mixing chamber. The droplet diameter decreased first and then increased with the increase in the effective porosity of the wire mesh, and Sauter mean diameter decreased from 23.1 to 20 μm. Moreover, this study adopts the simulation to explore the influence of bubble size on the spray droplet in the mixing chamber. The simulation results showed that as the effective porosity of the wire mesh increases, the proportion of small-scale bubbles (the bubble diameter Db ≤ 1 mm) increased from 11.3% to 83.37%, resulting in reduced spray droplet diameter. Notably, the number of small-scale bubbles increases first and then decreases, and the mean pressure drops decline.

show abstract

Validation of the VOF method for liquid spray process simulation from a pressure-swirl atomizer

Cited by 8 publications

References 5 publications

An Atomization Model of Air Spraying Using the Volume-of-Fluid Method and Large Eddy Simulation

An Atomization Model of Air Spraying Using the Volume-of-Fluid Method and Large Eddy Simulation

Numerical investigation of the impact of fuel temperature on spray characteristics in a pressure-swirl atomizer with spiral path

Numerical and experimental study of wire mesh in the swirl effervescent atomization

Contact Info

Product

Resources

About