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CFD simulations provide maximum pressure and wall shear acting on the solid substrate. We report on experimental and numerical results of the impact of millimeter sized droplet with high-speed projectile. The impact velocity ranges between 70 m/s and 245 m/s and is sufficiently high that the compressibility of the liquid becomes important.
Learn more:CFD simulations provide maximum pressure and wall shear acting on the solid substrate. We report on experimental and numerical results of the impact of millimeter sized droplet with high-speed projectile. The impact velocity ranges between 70 m/s and 245 m/s and is sufficiently high that the compressibility of the liquid becomes important.
www.sciencedirect.com/science/article/pii/S030193…Before a comprehensive review of droplet impact, the basic concepts of impacting droplet dynamics are introduced, including the maximal spreading factor of impacting droplet, bouncing height, contact time, icing time and dimensionless parameters related to impacting droplet.
www.sciencedirect.com/science/article/pii/S000186…In this study we analyse, for the first time, how the high velocity droplet impact dynamics change when moving from an incompressible to a compressible impact regime, linking internal...
www.nature.com/articles/s41598-022-11188-7The simulation results show that the droplet impact on the hydrophilic surface has a “VHCD” (Variable Height with Constant Dimeter) period, and the time required for droplet impact on different microstructure surfaces to reach the stable stage is determined.
www.sciencedirect.com/science/article/pii/S221415…We report on experimental and numerical results of the impact of millimeter sized droplet with high-speed projectile. The impact velocity V i m p ranges between 70m/s and 245m/s and is sufficiently high that the compressibility of the liquid becomes important.
ui.adsabs.harvard.edu/abs/2024IJMF..18104981G/…Pressure and wall shear stress from high-speed droplet impact
Dec 1, 2024 · CFD simulations provide maximum pressure and wall shear acting on the solid substrate. We report on experimental and numerical results of the impact of millimeter sized …
See results only from sciencedirect.comDroplet impacting dynamics…
Before a comprehensive review of droplet impact, the basic concepts of impacting …
Investigation on dynamic ch…
The simulation results show that the droplet impact on the hydrophilic surface has a …
Damping effect on impact pr…
The numerical simulation of the high-speed droplet impact on a wet wall indicated …
Direct numerical simulation …
The impact of a liquid drop onto a solid wall has attracted the interest of researchers …
Droplet impacting dynamics: Recent progress and future aspects
Jul 1, 2023 · Before a comprehensive review of droplet impact, the basic concepts of impacting droplet dynamics are introduced, including the maximal spreading factor of impacting droplet, …
Unveiling the dynamics of ultra high velocity droplet impact on …
May 6, 2022 · In this study we analyse, for the first time, how the high velocity droplet impact dynamics change when moving from an incompressible to a compressible impact regime, …
Investigation on dynamic characteristics of droplet impact on …
Nov 1, 2024 · The simulation results show that the droplet impact on the hydrophilic surface has a “VHCD” (Variable Height with Constant Dimeter) period, and the time required for droplet …
Pressure and wall shear stress from high-speed droplet impact
We report on experimental and numerical results of the impact of millimeter sized droplet with high-speed projectile. The impact velocity V i m p ranges between 70m/s and 245m/s and is …
Simulation and analytical modeling of high-speed …
Jan 30, 2024 · We simulated droplet impacts on solid surfaces and proposed a new analytical model for impact pressure and droplet turning line, targeting at predictions for enhanced cavitation. The highly compressed liquid behind the …
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Pressure generated at the instant of impact between a …
However, they also found that liquid droplet impact pressure rise on the same solid wall can be significantly reduced when the radius of curvature of the impacting interface is finite: they numerically reproduced a cylindrical droplet …
Pressure and wall shear stress from high-speed …
Sep 1, 2024 · We report on experimental and numerical results of the impact of millimeter sized droplet with high- speed projectile. The impact velocity 𝑉 𝑖𝑚𝑝 ranges between 70 m/s and 245m/s and is ...
Drop Impact Dynamics: Impact Force and Stress Distributions
Dynamic variables of drop impact such as force, drag, pressure, and stress distributions are key to understanding a wide range of natural and industrial processes.
Impact force and pressure distribution of droplets …
Sep 23, 2024 · The impact process of a droplet on the non-wetting surface is systematically simulated using the volume-of-fluid method with a high-resolution grid, taking into account the effects of the Weber number (We) and the …
Physics of droplet impact on various substrates and its …
Jan 17, 2023 · The droplet impact on a dry smooth solid surface depends on numerous factors including droplet size, impact velocity, the physical properties of the droplet, and the physical conditions of the environment such as …
Damping effect on impact pressure from liquid droplet …
Nov 1, 2018 · The numerical simulation of the high-speed droplet impact on a wet wall indicated that the impact pressure decreased in the presence of a liquid film of several micrometers over …
Unifying theory of scaling in drop impact: - arXiv.org
5 days ago · The dynamics of drop impact on a rigid surface – omnipresent in nature and technology – strongly depends on the droplet’s velocity, its size, and its material properties. ...
Droplet Impact on Asymmetric Hydrophobic Microstructures
In the instant of droplet impact, the hydrodynamic pressure is p d ∼ ρV 0 2 /2, where ρ is the density of the liquid. The balance p c ∼ p d gives the critical impact velocity for the pitch P as .
Droplet Impact and Spreading on Inclined Surfaces | Langmuir
Nov 14, 2021 · Introducing surface inclination in the case of droplet impact on solid substrates results in complicated dynamics post impact. The present work investigates the dynamics …
Maximum Pressure Caused by Droplet Impact is Dependent on …
In this study we show that the maximum pressure p max on the contact area of a droplet impacting on a rigid substrate increases with droplet size. Using an array of MEMS-based …
Direct numerical simulation of droplet impact onto dry stationary …
Dec 1, 2024 · The impact of a liquid drop onto a solid wall has attracted the interest of researchers owing to the abundance of its applications, from raindrop-induced surface erosion to spray …
Droplet impact outcomes: Effect of wettability and Weber number
Jul 19, 2024 · In this study, we experimentally explored the impact outcomes of droplets under a wide range of Weber numbers (0.2 ≤ We ≤ 200) and contact angles (91° ≤ θ ≤ 162°). Five …
The dynamic process of impingement was presented. Level set parameters are also studied to see their effects on the spreading factor and the porosity formation.
Wetting-induced interfacial instability: A mechanism for droplet ...
Mar 19, 2025 · This confirms that D depends primarily on the volume of the hanging droplet before it contacts the air-liquid interface, emphasizing the H-dependent nature of droplet size in this …
Research on the dynamic characteristics of micro-scale droplet …
Jan 1, 2025 · To address this gap, our research systematically analyzed the impact and rebound behaviors of droplets of various sizes on microstructur surfaces, revealing the significant …
What governs droplet spreading on a wetted wall
Mar 19, 2025 · Understanding the flow dynamics within a thin wall film during droplet impact spreading is crucial. A key open question concerns the dominant forces governing the …
Simulation of the impact and icing processes of water droplets on ...
Jan 1, 2025 · The impact and icing phenomenon of water droplets is widespread in many fields and has a serious impact on production and life. On the basis of the Volume of Fluid method …
Pressure drop characteristics and model construction of the actual ...
2 days ago · The impact of the interplay between flow velocity and eccentricity on the pressure drop gradient is examined under varying roughness conditions: (a) Ro = 0; (b) Ro = 0.5; (c) Ro …
Droplet impact on inclined substrates under a non-uniform electric ...
3 days ago · Droplet impact on inclined substrates under electric fields is a common behavior in electrostatic demisting applications, and understanding the droplet dynamics of this process is …
Pressure drop characteristics and model construction of the actual ...
2 days ago · This paper uses experimental and numerical simulation methods to study the frictional pressure drop in the annular space under actual rough wellbore conditions. The …
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