Multiscale simulation of surface nanostructure effect on bubble nucleation

Yijin Mao, Bo Zhang, Chung-Lung Chen, Yuwen Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Effects of nanostructured defects of copper solid surface on the bubble growth in liquid argon have been investigated through a hybrid atomistic-continuum method. The same solid surfaces with five different nanostructures, namely, wedge defect, deep rectangular defect (R-I), shallow rectangular defect (R-II), small rectangular defect (R-III) and no defect, have been modeled at molecular level. The liquid argon is placed on top of the hot solid copper with superheat of 30 K after equilibration is achieved with CFD-MD coupled simulation. Phase change of argon on five nanostructures has been observed and analyzed accordingly. The results showed that the solid surface with wedge defect tends to induce a nanobubble relatively more easily than the others, and the larger the size of the defect is the easier the bubble generate.

Original languageEnglish
Title of host publicationHeat Transfer Equipment; Heat Transfer in Multiphase Systems; Heat Transfer Under Extreme Conditions; Nanoscale Transport Phenomena; Theory and Fundamental Research in Heat Transfer; Thermophysical Properties; Transport Phenomena in Materials Processing and Manufacturing
PublisherAmerican Society of Mechanical Engineers
ISBN (Electronic)9780791857892
DOIs
StatePublished - 1 Jan 2017
EventASME 2017 Heat Transfer Summer Conference, HT 2017 - Bellevue, United States
Duration: 9 Jul 201712 Jul 2017

Publication series

NameASME 2017 Heat Transfer Summer Conference, HT 2017
Volume2

Conference

ConferenceASME 2017 Heat Transfer Summer Conference, HT 2017
CountryUnited States
CityBellevue
Period9/07/1712/07/17

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