Journal article
The macroscopic pancake bounce
- Abstract:
- We demonstrate that the so-called pancake bounce of millimetric water droplets on surfaces patterned with hydrophobic posts (Liu et al 2014 Nat. Phys. 10 515) can be reproduced on larger scales. In our experiment, a bed of nails plays the role of the structured surface and a water balloon models the water droplet. The macroscopic version largely reproduces the features of the microscopic experiment, including the Weber number dependence and the reduced contact time for pancake bouncing. The scalability of the experiment confirms the mechanisms of pancake bouncing, and allows us to measure the force exerted on the surface during the bounce. The experiment is simple and inexpensive and is an example where front-line research is accessible to student projects.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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Access Document
- Files:
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(Preview, Accepted manuscript, pdf, 4.0MB, Terms of use)
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- Publisher copy:
- 10.1088/1361-6404/38/1/015006
Authors
- Publisher:
- IOP Publishing
- Journal:
- European Journal of Physics More from this journal
- Volume:
- 38
- Issue:
- 1
- Publication date:
- 2016-12-13
- Acceptance date:
- 2016-11-24
- DOI:
- EISSN:
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1361-6404
- ISSN:
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0143-0807
- Keywords:
- Pubs id:
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pubs:666953
- UUID:
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uuid:2b479fdc-9560-4416-896d-6f00c835a2db
- Local pid:
-
pubs:666953
- Source identifiers:
-
666953
- Deposit date:
-
2016-12-22
Terms of use
- Copyright holder:
- IOP Publishing
- Copyright date:
- 2016
- Notes:
- © 2016 IOP Publishing Ltd. This is the accepted manuscript version of the article. The final version is available online from IOP at: [10.1088/1361-6404/38/1/015006]
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