Document Detail


Spout states in the selective withdrawal of immiscible fluids through a nozzle suspended above a two-fluid interface.
MedLine Citation:
PMID:  17501059     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
In selective withdrawal, fluid is withdrawn through a nozzle suspended above the flat interface separating two immiscible, density-separated fluids of viscosities nu(upper) and nu(lower) = lambda nu(upper). At low withdrawal rates, the interface gently deforms into a hump. At a transition withdrawal rate, a spout of the lower fluid becomes entrained with the flow of the upper one into the nozzle. When lambda=0.005, the spouts at the transition are very thin with features that are over an order of magnitude smaller than any observed in the humps. When lambda=20, there is an intricate pattern of hysteresis and a spout appears which is qualitatively different from those seen at lower lambda. No corresponding qualitative difference is seen in the hump shapes.
Authors:
Sarah C Case; Sidney R Nagel
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2007-03-14
Journal Detail:
Title:  Physical review letters     Volume:  98     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2007 Mar 
Date Detail:
Created Date:  2007-05-15     Completed Date:  2007-06-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  114501     Citation Subset:  -    
Affiliation:
The James Franck Institute, Department of Physics, University of Chicago, Chicago, Illinois 60637, USA.
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