Effect of nano-structured surface on meniscus evaporation at nanoscale

Shalabh C. Maroo, J. N. Chung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Evaporation of a nanoscale meniscus on a nano-structured heater surface is simulated using molecular dynamics. The nanostructures are evenly spaced on the surface and rectangular-shaped with a length and height of 0.41 nm and 0.96 nm respectively, and stretching throughout the width of the domain. The simulation results show that the film breaks during the early stages of evaporation due to the presence of nanostructures and no non-evaporating film forms (unlike a previous simulation performed in absence of nanostructures where non-evaporating film forms on the smooth surface). High heat transfer and evaporation rates are obtained. We conclude that heat transfer rates can be significantly increased during bubble nucleation and growth by the presence of nanostructures on the surface as it breaks the formation of non-evaporating film. This will cause additional chaos and allow the surrounding cooler liquid to come in contact with the surface enhancing heat transfer coefficients.

Original languageEnglish (US)
Title of host publication2010 14th International Heat Transfer Conference, IHTC 14
Pages877-883
Number of pages7
DOIs
StatePublished - Dec 1 2010
Externally publishedYes
Event2010 14th International Heat Transfer Conference, IHTC 14 - Washington, DC, United States
Duration: Aug 8 2010Aug 13 2010

Publication series

Name2010 14th International Heat Transfer Conference, IHTC 14
Volume3

Other

Other2010 14th International Heat Transfer Conference, IHTC 14
CountryUnited States
CityWashington, DC
Period8/8/108/13/10

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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  • Cite this

    Maroo, S. C., & Chung, J. N. (2010). Effect of nano-structured surface on meniscus evaporation at nanoscale. In 2010 14th International Heat Transfer Conference, IHTC 14 (pp. 877-883). (2010 14th International Heat Transfer Conference, IHTC 14; Vol. 3). https://doi.org/10.1115/IHTC14-23306