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Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
Published on: May 15, 2017
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Solid-Liquid Thermal Transport and Its Relationship with Wettability and the Interfacial Liquid Structure
Bladimir Ramos-Alvarado1, Satish Kumar1, G P Peterson1
1The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States.
The Journal of Physical Chemistry Letters
|August 21, 2016
Summary
Surface chemistry impacts heat transfer, but the relationship isn't universal. Density depletion length helps reconcile thermal transport calculations across different surfaces, including graphene-coated ones.
Area of Science:
- Surface Science
- Materials Science
- Thermal Engineering
Background:
- Experiments suggest a correlation between surface wetting properties and heat transfer.
- Understanding this relationship is crucial for designing efficient thermal management systems.
Purpose of the Study:
- To investigate the relationship between surface chemistry, wettability, and thermal transport.
- To explore heat transfer across complex interfaces, such as graphene-coated surfaces.
Main Methods:
- Utilized molecular dynamics simulations to study surface wettability.
- Analyzed solid-liquid thermal transport across bare and graphene-coated silicon surfaces.
Main Results:
- The correlation between interfacial heat transfer and wettability is not universally applicable.
- Introduced density depletion length as a unifying parameter for thermal boundary conductance.
Conclusions:
- Surface chemistry and wettability do not universally dictate interfacial heat transfer.
- Density depletion length provides a consistent method for calculating thermal boundary conductance across diverse surfaces.
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