Droplet impacting dynamics: Recent progress and future aspects

Xin Wang; Bo Xu; Shuai Guo; Yu Zhao; Zhenqian Chen

doi:10.1016/j.cis.2023.102919

Droplet impacting dynamics: Recent progress and future aspects

Adv Colloid Interface Sci. 2023 Jul:317:102919. doi: 10.1016/j.cis.2023.102919. Epub 2023 May 13.

Authors

Xin Wang¹, Bo Xu², Shuai Guo², Yu Zhao², Zhenqian Chen³

Affiliations

¹ School of Energy and Environment, Southeast University, Nanjing, PR China; Department of Mechanical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong, PR China.
² School of Energy and Environment, Southeast University, Nanjing, PR China.
³ School of Energy and Environment, Southeast University, Nanjing, PR China; Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, PR China; Jiangsu Provincial Key Laboratory of Solar Energy Science and Technology, School of Energy and Environment, Southeast University, Nanjing, PR China. Electronic address: zqchen@seu.edu.cn.

PMID: 37216871
DOI: 10.1016/j.cis.2023.102919

Abstract

Droplet impact behaviours are widely applied in a variety of domains including self-cleaning, painting and coating, corrosion of turbine blades and aircraft, separation and oil repellency, anti-icing, heat transfer and droplet electricity generation, etc. The wetting behaviours and impact dynamics of droplets on solid and liquid surfaces involve complex solid-liquid and liquid-liquid interfacial interactions. The modulation of droplet dynamics by means of specific surface morphology and hydrophobic/hydrophilic patterns, which in turn can be derived to related applications, is one of the current promising interests in the interfacial effect modulating droplet dynamics. This review provides a detailed overview of several scientific aspects of droplet impact behaviours and heat transfer processes influenced by multiple factors. Firstly, the essential wetting theory and the fundamental parameters of impinging droplets are introduced. Secondly, the effects of different parameters on the dynamic behaviours and heat transfer of impinging droplet are discussed. Finally, the potential applications are listed. Existing concerns and challenges are summarized and future perspectives are provided to address poorly understood and conflicting issues.

Keywords: Droplet impingement; Heat transfer; Solid-liquid interaction; Surface technology.

Publication types

Review