Sustaining dry surfaces under water

Paul R. Jones, Xiuqing Hao, Eduardo R. Cruz-Chu, Konrad Rykaczewski, Krishanu Nandy, Thomas M. Schutzius, Kripa K. Varanasi, Constantine M. Megaridis, Jens H. Walther, Petros Koumoutsakos, Horacio D. Espinosa, Neelesh A. Patankar

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Rough surfaces immersed under water remain practically dry if the liquid-solid contact is on roughness peaks, while the roughness valleys are filled with gas. Mechanisms that prevent water from invading the valleys are well studied. However, to remain practically dry under water, additional mechanisms need consideration. This is because trapped gas (e.g. air) in the roughness valleys can dissolve into the water pool, leading to invasion. Additionally, water vapor can also occupy the roughness valleys of immersed surfaces. If water vapor condenses, that too leads to invasion. These effects have not been investigated, and are critically important to maintain surfaces dry under water. In this work, we identify the critical roughness scale, below which it is possible to sustain the vapor phase of water and/or trapped gases in roughness valleys-thus keeping the immersed surface dry. Theoretical predictions are consistent with molecular dynamics simulations and experiments.

Original languageEnglish (US)
Article number12311
JournalScientific Reports
Volume5
DOIs
StatePublished - Aug 18 2015
Externally publishedYes

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sustaining
roughness
valleys
water
water vapor
gases
vapor phases
molecular dynamics
air
liquids
predictions
simulation

ASJC Scopus subject areas

  • General

Cite this

Jones, P. R., Hao, X., Cruz-Chu, E. R., Rykaczewski, K., Nandy, K., Schutzius, T. M., ... Patankar, N. A. (2015). Sustaining dry surfaces under water. Scientific Reports, 5, [12311]. https://doi.org/10.1038/srep12311

Sustaining dry surfaces under water. / Jones, Paul R.; Hao, Xiuqing; Cruz-Chu, Eduardo R.; Rykaczewski, Konrad; Nandy, Krishanu; Schutzius, Thomas M.; Varanasi, Kripa K.; Megaridis, Constantine M.; Walther, Jens H.; Koumoutsakos, Petros; Espinosa, Horacio D.; Patankar, Neelesh A.

In: Scientific Reports, Vol. 5, 12311, 18.08.2015.

Research output: Contribution to journalArticle

Jones, PR, Hao, X, Cruz-Chu, ER, Rykaczewski, K, Nandy, K, Schutzius, TM, Varanasi, KK, Megaridis, CM, Walther, JH, Koumoutsakos, P, Espinosa, HD & Patankar, NA 2015, 'Sustaining dry surfaces under water', Scientific Reports, vol. 5, 12311. https://doi.org/10.1038/srep12311
Jones PR, Hao X, Cruz-Chu ER, Rykaczewski K, Nandy K, Schutzius TM et al. Sustaining dry surfaces under water. Scientific Reports. 2015 Aug 18;5. 12311. https://doi.org/10.1038/srep12311
Jones, Paul R. ; Hao, Xiuqing ; Cruz-Chu, Eduardo R. ; Rykaczewski, Konrad ; Nandy, Krishanu ; Schutzius, Thomas M. ; Varanasi, Kripa K. ; Megaridis, Constantine M. ; Walther, Jens H. ; Koumoutsakos, Petros ; Espinosa, Horacio D. ; Patankar, Neelesh A. / Sustaining dry surfaces under water. In: Scientific Reports. 2015 ; Vol. 5.
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