Investigations of water droplet impact and freezing on a cold substrate with the Lattice Boltzmann method

Perez, Jesus Garcia; Leclaire, Sébastien; Ammar, Sami; Trépanier, Jean‐Yves; Reggio, Marcelo; Benmeddour, Ali

doi:10.1016/j.ijft.2021.100109

Cited by 7 publications

(11 citation statements)

References 37 publications

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“…Combined with the multiphase LB model and the enthalpy thermal LB model, Zhang et al (2020) proposed an axisymmetric LB model to simulate the freezing process of a sessile water droplet with consideration of droplet volume expansion. The combination of the pseudo-potential multiphase model and a thermal single-component phase change model is used by Pérez et al (2021) for studying droplet impact and solidification on an airfoil.…”

Section: Introductionmentioning

confidence: 99%

“…Although multiphase flows have been investigated widely with different LB schemes, thermal multiphase simulations of liquid-solid phase transition and possible volume change during this transition (Gong et al 2019;Zhang et al 2020;Pérez et al 2021) are almost exclusively limited to the pseudo-potential approach. The method's limitation is that it relies on mesoscale interaction to separate multiple phases, making it difficult to extend to other (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…To fill this gap, this paper aims to present a new modification to the Cahn-Hilliard equation that can simulate volume changes during solidification. Unlike previous methods (Gong et al 2019;Zhang et al 2020;Pérez et al 2021), this modification can be used for both expansion and contraction scenarios, not just expansion. To implement this new formulation, a new LB framework has been developed to handle property variation that can occur during solidification.…”

Section: Introductionmentioning

confidence: 99%

“…Efforts have been made to understand the droplet freezing process through theoretical models (Schultz, Worster & Anderson 2001;Schetnikov, Matiunin & Chernov 2015;Zhang et al 2017b), experiments (Jung et al 2012;Zhang, Wu & Min 2017a;Shi & Duan 2022) or numerical simulations (Vu 2018;Zhang et al 2018;Bodaghkhani & Duan 2020). As a numeric method, LB has also been used in a number of studies (Xiong & Cheng 2018b,a;Gong et al 2019;Zhang et al 2020;Pérez et al 2021). Most of these studies are concerned with the solidification of water droplets surrounded by cold air.…”

Section: Introductionmentioning

confidence: 99%

“…The combination of the pseudo-potential multiphase model and a thermal single-component phase change model is used by Pérez et al. (2021) for studying droplet impact and solidification on an airfoil.…”

Section: Introductionmentioning

confidence: 99%

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A new lattice Boltzmann model for liquid–solid phase transition and its application in the simulation of sessile droplet solidification – focusing on volume change

Mohammadipour,

Duan

2024

J. Fluid Mech.

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This paper introduces a new modification to the convective Cahn–Hilliard equation and a lattice Boltzmann framework to simulate liquid–solid phase transitions in multicomponent systems. The model takes into account changes in properties, such as density, caused by solidification, which leads to volume expansion or contraction. After validating the proposed model against classical problems and experimental data, the solidification of a sessile droplet was investigated in detail. Results of numerical simulations suggest that the environmental conditions are as important as the surface condition in deciding the freezing time and the final shape of the droplet. The environmental properties can also affect the freezing time indirectly through interaction with surface wettability. It has been demonstrated that hydrophobic surfaces may lose their advantages over hydrophilic surfaces in terms of anti-icing performance when primary solidification is initiated from the interface between the droplet and the environment fluid. The deformations of droplets, either with contraction or expansion, were confirmed and compared in different environments. This study offers a new perspective on droplet solidification by exposing the strong influence of environmental conditions and meanwhile provides a useful numerical method to predict the phase change process.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A new lattice Boltzmann model for liquid–solid phase transition and its application in the simulation of sessile droplet solidification – focusing on volume change

Mohammadipour,

Duan

2024

J. Fluid Mech.

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The modeling of transient phase changes of water droplets in flue gas flow in the range of temperatures characteristic of condensing economizer technologies

Miliauskas

Puida²,

Poškas³

et al. 2022

Energy

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Investigation of the molten droplet deposition offset based on the simple-component pseudopotential model

et al. 2023

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Metal droplet deposition manufacturing is an additive manufacturing technique that relies on the accurate prediction of deposition position, but is influenced by the wetting degree of solidified surface and the substrate. In this paper, a modified solid discriminant function is proposed for the simple-component pseudopotential model in the lattice Boltzmann method. The results show that the wetting degree of the substrate and the pre-solidified droplet causes the post-deposited droplet to deviate from the initial deposition distance Li* under interfacial tension, producing an offset δL*. However, the solidification effect inhibits spreading and rebound motion, thus changing the actual δL*. Under the solidification effect, different wetting degrees show that the horizontal deviation is more influenced by the pre-solidified droplet than the substrate and can be linearly predicted. The deposition can be divided into two stages depending on the attraction and repulsion motions of the droplets. In the attraction stage, the droplets form a three-phase contact line with the solidification surface, generating the pressure drop with the negative horizontal component under capillary expansion. In the repulsion stage, the second contact line is formed on the substrate, generating a smaller pressure drop in the horizontal direction. The essence of the difference effects of the two surfaces lies in the contacting duration and direction. Based on the principle of deposition deviation proposed in this paper, it will help to optimize the process parameters and improve the molding accuracy.

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Investigations of water droplet impact and freezing on a cold substrate with the Lattice Boltzmann method

Cited by 7 publications

References 37 publications

A new lattice Boltzmann model for liquid–solid phase transition and its application in the simulation of sessile droplet solidification – focusing on volume change

A new lattice Boltzmann model for liquid–solid phase transition and its application in the simulation of sessile droplet solidification – focusing on volume change

The modeling of transient phase changes of water droplets in flue gas flow in the range of temperatures characteristic of condensing economizer technologies

Investigation of the molten droplet deposition offset based on the simple-component pseudopotential model

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