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Updated: Mar 24, 2026
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High Throughput Analysis of Liquid Droplet Impacts
Published on: March 6, 2020
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Spreading Dynamics and Predictive Modeling for Liquid Droplets Impacting Elastic Heterogeneous Surfaces
Yijie Miao1, Xiaoqing Sun1, Guo Lu1
1College of Mechanical Engineering, Donghua University, Shanghai 201620, China.
Langmuir : the ACS Journal of Surfaces and Colloids
|March 23, 2026
Summary
This study explores droplet impact on flexible, heterogeneous surfaces. A new model predicts droplet spreading diameter, aiding controlled deposition in applications like inkjet printing.
Area of Science:
- Fluid Dynamics
- Surface Science
- Materials Science
Background:
- Droplet impact on heterogeneous surfaces is crucial for coating and printing.
- Nonuniform wettability complicates understanding droplet spreading dynamics.
Purpose of the Study:
- Investigate droplet impact on flexible, heterogeneous hydrophilic-hydrophobic surfaces.
- Understand how substrate flexibility affects energy dissipation and spreading.
- Develop a predictive model for maximum droplet spreading diameter.
Main Methods:
- Systematic experimental investigation of droplet impact.
- Utilized flexible surfaces with varying wettability.
- Varied Weber numbers to analyze dynamic spreading.
- Developed and validated a predictive model.
Main Results:
- Substrate flexibility modulates energy dissipation and contact line dynamics.
- Identified key factors influencing maximum spreading diameter.
- Established a validated predictive model for droplet spreading.
Conclusions:
- The developed model provides theoretical support for controlled droplet deposition on complex surfaces.
- Offers insights into fluid dynamics on heterogeneous, flexible substrates.
- Relevant for surface coating and inkjet printing applications.
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