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High Throughput Analysis of Liquid Droplet Impacts
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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
PubMed
Summary
This summary is machine-generated.

This study explores droplet impact on flexible, heterogeneous surfaces. A new model predicts droplet spreading diameter, aiding controlled deposition in applications like inkjet printing.

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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.