Abstract
Drops residing on cylindrical surfaces are widely encountered in nature and in applications. A variable-radius cap model is established here using three parameters to approximately describe their shapes when the effect of gravity is insignificant. The morphology of a drop on cylinders with different radii and wetting properties has been simulated using Surface Evolver. The characteristic parameters of drop morphology, the maximum radius, minimum radius and height, are used to validate the model. It indicates that the model is accurate for Young's contact angle over 20° and for radius of cylinder a few times greater than that of the drop. The transition condition of drops from a clam shell to barrel conformation can be obtained based on the theoretical model. The ability to rapidly obtain the drop morphologies presents vistas in conducting improved three dimensional simulations of heat and mass transfer as the drop evaporates from fibers and cylinders.
| Original language | English |
|---|---|
| Pages (from-to) | 1132-1136 |
| Number of pages | 5 |
| Journal | International Journal of Heat and Mass Transfer |
| Volume | 93 |
| DOIs | |
| Publication status | Published - 1 Feb 2016 |
Keywords
- Drop morphology
- Surface Evolver
- Transition condition
- Variable-radius cap model
Cite this
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Fast modeling of clam-shell drop morphologies on cylindrical surfaces. / Lu, Zhenping; Ng, Tuck Wah; Yu, Yang.
In: International Journal of Heat and Mass Transfer, Vol. 93, 01.02.2016, p. 1132-1136.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Fast modeling of clam-shell drop morphologies on cylindrical surfaces
AU - Lu, Zhenping
AU - Ng, Tuck Wah
AU - Yu, Yang
PY - 2016/2/1
Y1 - 2016/2/1
N2 - Drops residing on cylindrical surfaces are widely encountered in nature and in applications. A variable-radius cap model is established here using three parameters to approximately describe their shapes when the effect of gravity is insignificant. The morphology of a drop on cylinders with different radii and wetting properties has been simulated using Surface Evolver. The characteristic parameters of drop morphology, the maximum radius, minimum radius and height, are used to validate the model. It indicates that the model is accurate for Young's contact angle over 20° and for radius of cylinder a few times greater than that of the drop. The transition condition of drops from a clam shell to barrel conformation can be obtained based on the theoretical model. The ability to rapidly obtain the drop morphologies presents vistas in conducting improved three dimensional simulations of heat and mass transfer as the drop evaporates from fibers and cylinders.
AB - Drops residing on cylindrical surfaces are widely encountered in nature and in applications. A variable-radius cap model is established here using three parameters to approximately describe their shapes when the effect of gravity is insignificant. The morphology of a drop on cylinders with different radii and wetting properties has been simulated using Surface Evolver. The characteristic parameters of drop morphology, the maximum radius, minimum radius and height, are used to validate the model. It indicates that the model is accurate for Young's contact angle over 20° and for radius of cylinder a few times greater than that of the drop. The transition condition of drops from a clam shell to barrel conformation can be obtained based on the theoretical model. The ability to rapidly obtain the drop morphologies presents vistas in conducting improved three dimensional simulations of heat and mass transfer as the drop evaporates from fibers and cylinders.
KW - Drop morphology
KW - Surface Evolver
KW - Transition condition
KW - Variable-radius cap model
UR - http://www.scopus.com/inward/record.url?scp=84948400395&partnerID=8YFLogxK
U2 - 10.1016/j.ijheatmasstransfer.2015.10.064
DO - 10.1016/j.ijheatmasstransfer.2015.10.064
M3 - Article
VL - 93
SP - 1132
EP - 1136
JO - International Journal of Heat and Mass Transfer
JF - International Journal of Heat and Mass Transfer
SN - 0017-9310
ER -