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https://hdl.handle.net/20.500.14279/10950
Πεδίο DC | Τιμή | Γλώσσα |
---|---|---|
dc.contributor.author | Kaliviotis, Efstathios | - |
dc.contributor.author | Sherwood, Joseph M. | - |
dc.contributor.author | Balabani, Stavroula | - |
dc.date.accessioned | 2018-04-19T08:26:49Z | - |
dc.date.available | 2018-04-19T08:26:49Z | - |
dc.date.issued | 2018-03-01 | - |
dc.identifier.citation | Physics of Fluids, 2018, vol. 30, no. 3 | en_US |
dc.identifier.issn | 10706631 | - |
dc.identifier.uri | https://hdl.handle.net/20.500.14279/10950 | - |
dc.description.abstract | The red blood cell (RBC) aggregation phenomenon is majorly responsible for the non-Newtonian nature of blood, influencing the blood flow characteristics in the microvasculature. Of considerable interest is the behaviour of the fluid at the bifurcating regions. In vitro experiments, using microchannels, have shown that RBC aggregation, at certain flow conditions, affects the bluntness and skewness of the velocity profile, the local RBC concentration, and the cell-depleted layer at the channel walls. In addition, the developed RBC aggregates appear unevenly distributed in the outlets of these channels depending on their spatial distribution in the feeding branch, and on the flow conditions in the outlet branches. In the present work, constitutive equations of blood viscosity, from earlier work of the authors, are applied to flows in a T-type bifurcating microchannel to examine the local viscosity characteristics. Viscosity maps are derived for various flow distributions in the outlet branches of the channel, and the location of maximum viscosity magnitude is obtained. The viscosity does not appear significantly elevated in the branches of lower flow rate as would be expected on the basis of the low shear therein, and the maximum magnitude appears in the vicinity of the junction, and towards the side of the outlet branch with the higher flow rate. The study demonstrates that in the branches of lower flow rate, the local viscosity is also low, helping us to explain why the effects of physiological red blood cell aggregation have no adverse effects in terms of in vivo vascular resistance. | en_US |
dc.format | en_US | |
dc.language.iso | en | en_US |
dc.relation.ispartof | Physics of Fluids | en_US |
dc.rights | © Author(s) | en_US |
dc.subject | Bifurcation (mathematics) | en_US |
dc.subject | Blood | en_US |
dc.subject | Blood pressure | en_US |
dc.subject | Cells | en_US |
dc.subject | Constitutive equations | en_US |
dc.subject | Hemodynamics | en_US |
dc.subject | Microchannels | en_US |
dc.subject | Microfluidics | en_US |
dc.title | Local viscosity distribution in bifurcating microfluidic blood flows | en_US |
dc.type | Article | en_US |
dc.collaboration | Cyprus University of Technology | en_US |
dc.collaboration | University College London | en_US |
dc.collaboration | Imperial College London | en_US |
dc.subject.category | Clinical Medicine | en_US |
dc.journals | Open Access | en_US |
dc.country | Cyprus | en_US |
dc.country | United Kingdom | en_US |
dc.subject.field | Medical and Health Sciences | en_US |
dc.publication | Peer Reviewed | en_US |
dc.identifier.doi | 10.1063/1.5011373 | en_US |
dc.relation.issue | 3 | en_US |
dc.relation.volume | 30 | en_US |
cut.common.academicyear | 2017-2018 | en_US |
item.fulltext | With Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.openairetype | article | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 1089-7666 | - |
crisitem.journal.publisher | American Institute of Physics | - |
crisitem.author.dept | Department of Mechanical Engineering and Materials Science and Engineering | - |
crisitem.author.faculty | Faculty of Engineering and Technology | - |
crisitem.author.orcid | 0000-0003-4149-4396 | - |
crisitem.author.parentorg | Faculty of Engineering and Technology | - |
Εμφανίζεται στις συλλογές: | Άρθρα/Articles |
Αρχεία σε αυτό το τεκμήριο:
Αρχείο | Περιγραφή | Μέγεθος | Μορφότυπος | |
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Local viscosity distribution in.pdf | Open Access | 4.52 MB | Adobe PDF | Δείτε/ Ανοίξτε |
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