TY - JOUR
T1 - Density-Driven Flows in Evaporating Binary Liquid Droplets
AU - Edwards, A.M.J.
AU - Atkinson, P.S.
AU - Cheung, C.S.
AU - Liang, H.
AU - Fairhurst, D.J.
AU - Ouali, F.F.
N1 - Acceptance date unknown - proxy used.
PY - 2018/11/1
Y1 - 2018/11/1
N2 - In the evaporation of microlitre liquid droplets, the accepted view is that surface tension dominates and the effect of gravity is negligible. We report, through the first use of rotating optical coherence tomography, that a change in the flow pattern and speed occurs when evaporating binary liquid droplets are tilted, conclusively showing that gravitational effects dominate the flow. We use gas chromatography to show that these flows are solutal in nature, and we establish a flow phase diagram demonstrating the conditions under which different flow mechanisms occur.
AB - In the evaporation of microlitre liquid droplets, the accepted view is that surface tension dominates and the effect of gravity is negligible. We report, through the first use of rotating optical coherence tomography, that a change in the flow pattern and speed occurs when evaporating binary liquid droplets are tilted, conclusively showing that gravitational effects dominate the flow. We use gas chromatography to show that these flows are solutal in nature, and we establish a flow phase diagram demonstrating the conditions under which different flow mechanisms occur.
UR - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=pure_uoe&SrcAuth=WosAPI&KeyUT=WOS:000448933900005&DestLinkType=FullRecord&DestApp=WOS
U2 - 10.1103/PhysRevLett.121.184501
DO - 10.1103/PhysRevLett.121.184501
M3 - Article
C2 - 30444392
SN - 0031-9007
VL - 121
SP - 1
EP - 5
JO - Physical Review Letters
JF - Physical Review Letters
IS - 18
M1 - 184501
ER -