Formation of fluid structures due to jet-jet and jet-sheet interactions

Soni, Anurag; Sanjay, Vatsal; Das, Arup Kumar

doi:10.1016/j.ces.2018.06.055

Cited by 7 publications

(2 citation statements)

References 28 publications

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“…However, the perturbations on the interface are simply due to the difference in velocity across the interface that produces the shearing action, which in turn causes the deformation on the interface. The formation of perturbations on the interface due to the shearing action could be correlated with the Kelvin–Helmholtz instability. − Unambiguously, only the waves are formed along the liquid pool due to the continuous shearing action established by the air stream flow horizontally. Hence, all of the quantified analyses on air entrainment were carried out by considering the viscous liquid in the pool, i.e., air–silicone oil and air–polybutene, and they are presented in the subsequent subsections.…”

Section: Results and Discussionmentioning

confidence: 99%

Numerical Simulation and Analytical Prediction on the Development of Entrained Air Filament Caused by the Combined Effect of Rotational Field and Free Stream Flow

Panda

Rana

2022

Ind. Eng. Chem. Res.

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In this study, an attempt has been made to characterize the pattern of entrained air filament inside a liquid bath of high viscosity by employing a fully submerged horizontal rotating solid roller where the lighter phase is allowed to flow uniformly above the bath. The influence of roller rotational speed (ω), depth of submergence (h/D), strength of the crossflow (Re flow ), and fluid pair (Mo) on the entrainment profile has been established numerically to report the physical insights. An open-source Gerris solver has been employed to perform this computational work. We have also described the transient dynamics of the cusp tip for various input pertinent parameters. In addition, both departure of bubbles at the tip of the steady configured cusp and the entrainment rate are predicted for different gas−liquid pairs. Interfacial configurations are also obtained as a consequence of the effect of gravitational pull. Lastly, an analytical analysis predicted successfully the obtaining of the structure of the cusp, and the predictions are quite satisfactory compared to present numerical data.

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Section: Results and Discussionmentioning

confidence: 99%

Numerical Simulation and Analytical Prediction on the Development of Entrained Air Filament Caused by the Combined Effect of Rotational Field and Free Stream Flow

Panda

Rana

2022

Ind. Eng. Chem. Res.

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“…The experimental results aligned well with theoretical predictions, indicating the model's capability to estimate maximum length and average thickness of a liquid sheet. Soni et al [20] found that the ejection of the droplets stabilizes the rim by shedding the kinetic energy through the droplets, thus ensuring that the liquid rim remains quasi-stable without any disintegration. Plateau-Rayleigh instability is the main reason for the formation of droplets through fingering instability and significantly contributes to the atomization regime.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Impinging Jet Atomization Using Doublet and Quadruplet Jets

Weng,

Liu

2024

Energies

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The process of impinging-jet atomization involves the collision of multiple liquid jets to create atomization. This study specifically focuses on a system that utilizes impinging atomization with multiple jets. The injectors used in this study are arranged in either a planar configuration for doublet injectors or a stereoscopic configuration for quadruplet injectors, both designed to facilitate impinging atomization. The angle at which the jets collide is set at 90°, with injector intersection angles of either 60° or 120°. The diameter of the jets ranges from 0.8 to 1.1 mm, while the length–diameter ratio of the pipe remains fixed at 10. To investigate the atomization process, experiments were conducted by varying flow rates (ranging from 30 to 130 mL/min) from each injector using pure water as the working fluid. This resulted in a range of Weber numbers spanning from 4 to 206 and Reynolds numbers ranging from 578 to 3443. Four atomization regimes were observed in the impinging atomization flow field: closed-rim mode, periodic drop mode, open rim mode, and fully developed mode. The experiment utilized a high-speed camera to observe the formation and breakup of the liquid sheet. However, increasing the number of jets and altering the impingement configuration had minimal impact on the liquid sheet patterns as the Weber number increased. Compared to traditional double jet atomization, quadruplet jet atomization resulted in the wider extension of liquid sheets and similar atomization patterns. This study is useful for designing jet impingement-atomization systems for confined spaces.

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Mathematical Simulation of the Heat and Mass Transfer in the Movement of Liquid Droplets in a Gas Medium Under the Conditions of their Intense Phase Transformations

Antonov

Кузнецов

Стрижак

2020

J Eng Phys Thermophy

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Formation of fluid structures due to jet-jet and jet-sheet interactions

Cited by 7 publications

References 28 publications

Numerical Simulation and Analytical Prediction on the Development of Entrained Air Filament Caused by the Combined Effect of Rotational Field and Free Stream Flow

Numerical Simulation and Analytical Prediction on the Development of Entrained Air Filament Caused by the Combined Effect of Rotational Field and Free Stream Flow

Experimental Study on Impinging Jet Atomization Using Doublet and Quadruplet Jets

Mathematical Simulation of the Heat and Mass Transfer in the Movement of Liquid Droplets in a Gas Medium Under the Conditions of their Intense Phase Transformations

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