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Updated: Aug 7, 2025
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Pool-Boiling Heat-Transfer Enhancement on Cylindrical Surfaces with Hybrid Wettable Patterns
Published on: April 10, 2017
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The Effect of Liquid-Solid Interactions upon Nucleate Boiling on Rough Surfaces: Insights from Molecular Dynamics
Chang Guo1, Can Ji1, Yalong Kong1
1Energy Research Institute, Qilu University of Technology, Jinan 250014, China.
Materials (Basel, Switzerland)
|March 11, 2023
Summary
Engineered surfaces enhance heat transfer by improving bubble dynamics during boiling. Nanostructured surfaces with specific wettability boost nucleation rates and thermal efficiency for better thermal management.
Area of Science:
- Nanoscale science
- Heat transfer
- Surface engineering
Background:
- Engineered surfaces are crucial for thermal management due to enhanced phase change heat transfer.
- Mechanisms of rough structures and surface wettability on bubble dynamics require further investigation.
Purpose of the Study:
- Investigate bubble nucleation on nanostructured substrates with varying liquid-solid interactions.
- Quantitatively study bubble dynamic behaviors under different energy coefficients.
Main Methods:
- Modified molecular dynamics simulation of nanoscale boiling.
- Analysis of bubble nucleation and dynamics on rough nanostructured surfaces.
Main Results:
- Decreasing contact angle increases nucleation rate due to enhanced thermal energy absorption.
- Nanogrooves on rough surfaces promote initial nucleate embryos, improving thermal energy transfer efficiency.
Conclusions:
- Surface wettability and nanoscale patterns significantly influence bubble nucleation and heat transfer.
- Simulation results offer guidance for designing advanced thermal management systems.
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