Experimental investigation of the impact and freezing processes of a water droplet on an ice surface

Jin, Zheyan; Zhang, Huanhuan; Yang, Zhigang

doi:10.1016/j.ijheatmasstransfer.2017.02.055

Cited by 78 publications

(21 citation statements)

References 38 publications

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“…The freezing process of a water droplet has been the topic of comprehensive research [1], specifically areas such as visual study of freezing [2][3][4][5][6][7][8], singular tip [9][10][11][12][13], impact onto a surface [14][15][16][17][18][19] and tri-junction condition [20]. The research has concluded some important factors that affect the freezing process.…”

Section: Introductionmentioning

confidence: 99%

Influence of Substrate Material on Flow in Freezing Water Droplets—An Experimental Study

Fagerström

Ljung

Karlsson

et al. 2021

Water

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Freezing water droplets are a natural phenomenon that occurs regularly in the Arctic climate. It affects areas such as aircrafts, wind turbine blades and roads, where it can be a safety issue. To further scrutinize the freezing process, the main objective of this paper is to experimentally examine the influence of substrate material on the internal flow of a water droplet. The secondary goal is to reduce uncertainties in the freezing process by decreasing the randomness of the droplet size and form by introducing a groove in the substrate material. Copper, aluminium and steel was chosen due to their differences in thermal conductivities. Measurements were performed with Particle Image Velociometry (PIV) to be able to analyse the velocity field inside the droplet during the freezing process. During the investigation for the secondary goal, it could be seen that by introducing a groove in the substrate material, the contact radius could be controlled with a standard deviation of 0.85%. For the main objective, the velocity profile was investigated during different stages of the freezing process. Five points along the symmetry line of the droplet were compared and copper, which also has the highest thermal conductivity, showed the highest internal velocity. The difference between aluminium and steel was in their turn more difficult to distinguish, since the maximum velocity switched between the two materials along the symmetry line.

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Section: Introductionmentioning

confidence: 99%

Influence of Substrate Material on Flow in Freezing Water Droplets—An Experimental Study

Fagerström

Ljung

Karlsson

et al. 2021

Water

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“…The schematic of the current experimental setup is shown in Fig. 2, which is similar to that in our previous studies [13][14][15][16][17]. During the experiment, the test surface was cooled down to a subfreezing temperature by a constant temperature bath circulator (AC150-A25, Thermo Scientific).…”

Section: Methodsmentioning

confidence: 99%

The impact and freezing processes of a water droplet on different cold spherical surfaces

Jin

Zhang

et al. 2018

Experimental Thermal and Fluid Science

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“…An investigation of the impact and solidification of water drops on the iced surface at room temperature has been carried out in [38]. However, no experiments were designed to investigate the behavior of a single SLD on an iced surface.…”

Section: Solidification Phenomena In Sldmentioning

confidence: 99%

Fluid-structure interaction: Extended-FEM approach to solidification

Caraeni

Casseau

Habashi

2020

Finite Elements in Analysis and Design

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The ability of in-flight icing numerical codes to account for the effects of Supercooled Large Droplets (SLD), which are droplets ranging from 50-1000 µm, is still somewhat limited. Solvers that simulate SLD in in-flight icing treat an ensemble of droplets adopting a macroscopic approach, making use of some heuristic correlations based on experiments or extrapolating SLD behavior from smaller non-SLD droplets. Alternatively, taking a microscopic approach and accurately simulating the physics of individual droplets can lead to higher fidelity models when replacing empirical data. Therefore, developing models of a single SLD droplet impingement and solidification can provide a framework that expands the capabilities of current macroscopic solvers to handle water-ice fluid-structure interactions (FSI) and solidification.This presents challenges such as the evolution of the water-ice interface and the jump in fluid/solid properties due to phase change. This thesis proposes a level set method (LSM) to capture the movement of the interface, and the extended finite element method (XFEM) to sharply account for the discontinuities in the material properties without the need for body-conforming meshes.

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Experimental investigation of the impact and freezing processes of a water droplet on an ice surface

Cited by 78 publications

References 38 publications

Influence of Substrate Material on Flow in Freezing Water Droplets—An Experimental Study

Influence of Substrate Material on Flow in Freezing Water Droplets—An Experimental Study

The impact and freezing processes of a water droplet on different cold spherical surfaces

Fluid-structure interaction: Extended-FEM approach to solidification

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