4.6 Article

Dynamics Behavior of Droplet Impact on a Controllable Curved Micropillar Array Surface Induced by a Magnetic Field

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Review Chemistry, Multidisciplinary

Recent Progress on the Development of Magnetically-Responsive Micropillars: Actuation, Fabrication, and Applications

Ke Ni et al.

Summary: Stimuli-responsive micro-pillared structures can achieve complex and precise tasks at the microscale by deforming their pillars in response to external triggers. Magnetic field is a common and advantageous actuation strategy with instant response, remote control, and biocompatibility. This review comprehensively introduces recent progress in magnetically-responsive micropillars, covering their actuation mechanisms, fabrication methods, deformation patterns, and practical applications, such as particle manipulation, miniature robots, and anti-ice surfaces. The challenges and future directions for industrial implementation are also discussed.

ADVANCED FUNCTIONAL MATERIALS (2023)

Article Materials Science, Composites

Magneto-responsive photothermal composite cilia for active anti-icing and de-icing

Sang-Hyeon Lee et al.

Summary: The study demonstrated a multifunctional magneto-responsive photothermal composite cilia array (MRPA) with remarkable anti-icing and de-icing performance and outstanding light absorption capability. This material can effectively inhibit, delay, and remove ice formation.

COMPOSITES SCIENCE AND TECHNOLOGY (2022)

Article Chemistry, Multidisciplinary

Pancake Jumping of Sessile Droplets

Chenlu Qian et al.

Summary: This study reports the rapid jumping of sessile droplets, even cold droplets, in a pancake shape using engineered superhydrophobic magnetically responsive blades arrays. This largely unexplored droplet behavior, termed as pancake jumping, exhibits advantages such as short interaction time and high energy conversion efficiency. The critical conditions for the occurrence of this new phenomenon are also identified. This work provides a new toolkit for the controlled and active steering of droplets for various applications.

ADVANCED SCIENCE (2022)

Article Nanoscience & Nanotechnology

Locust-Inspired Direction-Dependent Transport Based on a Magnetic-Responsive Asymmetric-Microplate-Arrayed Surface

Chenghao Li et al.

Summary: Inspired by locusts, a magnetic-responsive microplate array surface has been designed to transport objects with rapid release of stored elastic energy, achieving directional transport.

ACS APPLIED MATERIALS & INTERFACES (2022)

Article Chemistry, Multidisciplinary

Successive Rebounds of Impinging Water Droplets on Superhydrophobic Surfaces

Yile Wang et al.

Summary: This paper investigates the bouncing behavior of water droplets on superhydrophobic surfaces and finds a nonmonotonic relationship between the restitution coefficient and the Weber number. Droplet-surface friction limits the rebound height, and above a critical value, viscous friction dominates. Semiempirical formulas are proposed to describe the restitution coefficient, allowing for the prediction of successive rebounds.

LANGMUIR (2022)

Review Chemistry, Multidisciplinary

Droplet Bouncing: Fundamentals, Regulations, and Applications

Xing Han et al.

Summary: Droplet impact is a common phenomenon in nature, daily life, and industrial processes, and it is crucial to control the outcomes for different applications. Droplet bouncing, as a special outcome, preserves the droplet shape and minimizes energy loss, making it beneficial in various applications. This review provides a comprehensive understanding of millimeter-sized droplet bouncing on solid surfaces and liquid pools, summarizing regulation methods, current applications, and proposing potential directions for future research.
Article Chemistry, Multidisciplinary

Droplet Impact on Asymmetric Hydrophobic Microstructures

Susumu Yada et al.

Summary: This study investigates the impact of droplets on surfaces with inclined micropillars and discovers directional rebound at high impact speeds. The experimental observations are further supported by numerical simulations, revealing the detailed movement of the droplets over the pillars. These findings are significant for the design of structured surfaces to control droplet mobility.

LANGMUIR (2022)

Article Chemistry, Physical

The wetting transition of low surface tension droplet on the special-shaped microstructure surface

Xiaowei Wang et al.

Summary: Hydrophobic surfaces are widely used due to their excellent properties. This study investigates the wetting behavior of droplets on reentrant microstructure surfaces using numerical simulations. The results show that the reentrant structure can effectively inhibit wetting transition and maintain a large apparent contact angle. The geometric parameters of the reentrant structure have a significant impact on the wetting behavior.

COLLOID AND INTERFACE SCIENCE COMMUNICATIONS (2022)

Review Thermodynamics

Heat transfer during multiple droplet impingement and spray cooling: Review and prospects for enhanced surfaces

J. D. Benther et al.

Summary: This article discusses the application of spray cooling and multiple droplet impingement heat transfer technology in improving spray cooling efficiency. Research shows that enhanced surfaces can enhance the outcome of spray cooling, but further studies are still needed to investigate the effects under different conditions.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2021)

Article Mechanics

Dilute sodium dodecyl sulfate droplets impact on micropillar-arrayed non-wetting surfaces

Long-Zan Wang et al.

Summary: In this study, the behavior of impinging dilute sodium dodecyl sulfate (SDS) droplets on micropillar-arrayed polydimethylsiloxane surfaces was experimentally investigated, revealing the significant influence of surface roughness and SDS concentration on the droplet behaviors. The narrow range of dimensionless Weber number, We, plays a crucial role in the complete rebound of impacting SDS droplets, with theoretical analysis and experimental data comparison conducted on the lower and upper limits of impact velocity. Additionally, the addition of SDS can notably reduce the contact time of bouncing droplets, while the maximum spreading factor is more influenced by SDS concentration than surface roughness, following a scaling law of We(1/4).

PHYSICS OF FLUIDS (2021)

Article Mechanics

Droplet impact dynamics on single-pillar superhydrophobic surfaces

Siyu Ding et al.

Summary: Single-pillar superhydrophobic surfaces can inhibit droplet splashing, and rebound droplets exhibit different morphologies under different conditions, following a classical 1/4-power law in terms of maximum spreading and width factors with the Weber number.

PHYSICS OF FLUIDS (2021)

Review Chemistry, Physical

Water droplet bouncing dynamics

Xingjian Yu et al.

Summary: The dynamics of water droplet bouncing is highly dependent on liquid properties, surface characteristics, and ambient pressure. Achieving no droplet/surface contact, which is crucial for droplet bouncing, can be realized through various methods such as lowering the Weber number of droplet, designing hydrophobic surfaces, actively maintaining the air/vapor film, vibrating the liquid bath, and applying electric/magnetic/pressure fields.

NANO ENERGY (2021)

Article Chemistry, Multidisciplinary

Influence of Microstructure Topography on the Oblique Impact Dynamics of Drops on Superhydrophobic Surfaces

Damon G. K. Aboud et al.

Summary: This study investigates the influence of microstructure topography on the restitution coefficient, maximum spreading diameter, and contact time of oblique drop impacts on superhydrophobic surfaces. The restitution coefficient is found to be largely independent of microstructure topography, but governed by the normal Weber number. The maximum spreading diameter is related to an adhesion coefficient and influenced by microstructure roughness, while contact time is affected by impact velocity and microstructure characteristics.

LANGMUIR (2021)

Article Chemistry, Physical

A universal single electrode droplet-based electricity generator (SE-DEG) for water kinetic energy harvesting

Nan Zhang et al.

Summary: SE-DEG is a novel and universal single electrode droplet-based electricity generator that can convert water droplet kinetic energy into electricity power on any surfaces. Its special configuration allows for more efficient utilization of triboelectric charges compared to traditional TENG.

NANO ENERGY (2021)

Article Chemistry, Physical

Droplet impact on pillar-arrayed non-wetting surfaces

Long-Zan Wang et al.

Summary: The study investigated the impact of droplets on polydimethylsiloxane (PDMS) surfaces with varying solid fractions, revealing changes in the upper and lower limits of the Weber number (We) as the solid fraction decreased. The behavior of droplets on surfaces with different solid fractions involved transitions between Cassie-Baxter and Wenzel wetting states, with the development of a novel model to predict the upper limit of impact velocity. Surface roughness was found to significantly influence the contact time of bouncing droplets, with the maximum spreading parameter following a We(1/4) scaling law.

SOFT MATTER (2021)

Article Multidisciplinary Sciences

A droplet-based electricity generator with high instantaneous power density

Wanghuai Xu et al.

NATURE (2020)

Article Chemistry, Multidisciplinary

Magnetically Induced Low Adhesive Direction of Nano/Micropillar Arrays for Microdroplet Transport

Yucai Lin et al.

ADVANCED FUNCTIONAL MATERIALS (2018)

Article Chemistry, Multidisciplinary

Unidirectional Droplet Transport on the Biofabricated Butterfly Wing

Peiliu Li et al.

LANGMUIR (2018)

Review Mechanics

Drop Impact on a Solid Surface

C. Josserand et al.

ANNUAL REVIEW OF FLUID MECHANICS, VOL 48 (2016)

Article Chemistry, Physical

Magnetic field-guided directional rebound of a droplet on a superhydrophobic flexible needle surface

Lei Wang et al.

JOURNAL OF MATERIALS CHEMISTRY A (2016)

Article Mechanics

Estimation of viscous dissipation in nanodroplet impact and spreading

Xin-Hao Li et al.

PHYSICS OF FLUIDS (2015)

Article Chemistry, Multidisciplinary

Influence of Substrate Elasticity on Droplet Impact Dynamics

Azar Alizadeh et al.

LANGMUIR (2013)

Article Physics, Applied

Nonwetting of impinging droplets on textured surfaces

Tao Deng et al.

APPLIED PHYSICS LETTERS (2009)

Article Physics, Multidisciplinary

Structured surfaces for a giant liquid slip

Choongyeop Lee et al.

PHYSICAL REVIEW LETTERS (2008)

Article Physics, Multidisciplinary

Wicking within forests of micropillars

C. Ishino et al.

Article Physics, Multidisciplinary

Bouncing transitions on microtextured materials

M Reyssat et al.

EUROPHYSICS LETTERS (2006)

Article Mechanics

Maximal deformation of an impacting drop

C Clanet et al.

JOURNAL OF FLUID MECHANICS (2004)