TY - GEN
T1 - Multiscale simulation of surface nanostructure effect on bubble nucleation
AU - Mao, Yijin
AU - Zhang, Bo
AU - Chen, Chung-Lung
AU - Zhang, Yuwen
N1 - Publisher Copyright:
© Copyright 2017 ASME.
PY - 2017
Y1 - 2017
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85032957980&partnerID=8YFLogxK
U2 - 10.1115/HT2017-5071
DO - 10.1115/HT2017-5071
M3 - Conference contribution
AN - SCOPUS:85032957980
T3 - ASME 2017 Heat Transfer Summer Conference, HT 2017
BT - Heat 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
PB - American Society of Mechanical Engineers
T2 - ASME 2017 Heat Transfer Summer Conference, HT 2017
Y2 - 9 July 2017 through 12 July 2017
ER -