| Intrusion Pressure to Initiate Flow through Pores between Spheres. | |
| | |
MedLine Citation:
|
PMID: 22260343 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
In this work, clusters of three or four spheres were used to examine intrusion pressure. Polytetrafluoroethylene (PTFE) or polyamide 66 (PA66) spheres were arranged horizontally to create a single pore. Liquid drops of water or ethylene glycol were gently introduced from above. If the spheres were too large, drops flowed through as soon as they were deposited. If the spheres were too small, liquid was suspended in the neck of the pore and could not pass through; drops became unstable and fell to one side. Alternatively, if spheres of a certain size were chosen, then capillary forces initially prevented drops of lesser stature from breaking though. However, as these drops grew taller, they eventually reached a height where the gravitational force exceeded the capillary force and the liquid flowed through the pore. A simple model for intrusion pressure was derived. Estimates from the model agreed well with experimentally measured values. |
| | |
Authors:
|
Charles William Extrand; Sung In Moon |
Related Documents
:
|
21928543 - Inaccuracy of home sphygmomanometers: a perspective from clinical practice. 8318303 - Effect on cardiac contractile force from addition of cations and oxygen to iohexol. com... 15680023 - Effect of peritoneal dialysis on intra-abdominal pressure and cardio-respiratory functi... |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2012-1-19 |
Journal Detail:
|
Title: Langmuir : the ACS journal of surfaces and colloids Volume: - ISSN: 1520-5827 ISO Abbreviation: - Publication Date: 2012 Jan |
Date Detail:
|
Created Date: 2012-1-20 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9882736 Medline TA: Langmuir Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Distribution of 5-HT(1E) receptors in the mammalian brain and cerebral vasculature: an immunohistoc...
Next Document: Drug resistance mutations and heteroresistance detected using the GenoType MTBDRplus assay and their...