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231224s2017 xx |||||o 00| ||eng c |
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7 |
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|a 10.1021/acs.langmuir.6b04645
|2 doi
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|a eng
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| 100 |
1 |
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|a Wu, Cyuan-Jhang
|e verfasserin
|4 aut
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| 245 |
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|a Extraordinarily Rapid Rise of Tiny Bubbles Sliding beneath Superhydrophobic Surfaces
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 18.04.2018
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|a Date Revised 18.04.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Tiny bubbles readily stick onto substrates owing to contact angle hysteresis (CAH). Nevertheless, they can slide slowly on a tilted surface with ultralow CAH because capillarity is overcome by buoyancy. It is surprising to observe experimentally that bubbles of 3-15 μL (diameter 1.79-3.06 mm) slide beneath a tilted superhydrophobic surface at a vertical ascent rate faster than that of freely rising ones of high Reynold numbers ≈O(102). As the tilting angle increases, the drag coefficient remains essentially the same as that of a freely rising bubble, but the frontal area of the flat bubble rises monotonically. Nonetheless, the frontal area of the sliding bubble always stays much smaller than that of a freely rising bubble. Consequently, the small drag force associated with the sliding bubbles is attributed to their substantially small frontal areas on superhydrophobic surfaces
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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| 700 |
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|a Chang, Cheng-Chung
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sheng, Yu-Jane
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tsao, Heng-Kwong
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 33(2017), 5 vom: 07. Feb., Seite 1326-1331
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|x 1520-5827
|7 nnns
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|g volume:33
|g year:2017
|g number:5
|g day:07
|g month:02
|g pages:1326-1331
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|u http://dx.doi.org/10.1021/acs.langmuir.6b04645
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