Journal article icon

Journal article

Capillary filling in microchannels patterned by posts.

Abstract:
We investigate the capillary filling of three-dimensional microchannels with surfaces patterned by posts of square cross section. We show that pinning on the edges of the posts suppresses and can halt capillary filling. We stress the importance of the channel walls in controlling whether filling can occur. In particular for channels higher than the distance between adjacent posts, filling occurs for contact angles less than a threshold angle of approximately 55 degrees , independent of the height of the channel.

Actions


Access Document


Publisher copy:
10.1103/physreve.80.056309

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author
Journal:
Physical review. E, Statistical, nonlinear, and soft matter physics More from this journal
Volume:
80
Issue:
5 Pt 2
Pages:
056309
Publication date:
2009-11-01
DOI:
EISSN:
1550-2376
ISSN:
1539-3755
Language:
English
Keywords:
Pubs id:
pubs:52611
UUID:
uuid:d369fd80-920f-4a91-90ee-41f68e034c99
Local pid:
pubs:52611
Source identifiers:
52611
Deposit date:
2012-12-20

Terms of use


Views and Downloads






If you are the owner of this record, you can report an update to it here: Report update to this record

TO TOP