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Razmavar A, Malayeri MR, Abd-Elhady M. Influence of secondary flow on the thermal performance of exhaust gas recirculation (EGR) coolers. INTERNATIONAL JOURNAL OF THERMAL SCIENCES 2021; 161:106720. [DOI: 10.1016/j.ijthermalsci.2020.106720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Liu X, Du D, Tu G, Li W. Unraveling effects of Dean vortices on membrane fouling in a sinusoidally curved channel. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Chew JW, Kilduff J, Belfort G. The behavior of suspensions and macromolecular solutions in crossflow microfiltration: An update. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.117865] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Lotfiyan H, Zokaee Ashtiani F, Fouladitajar A, Armand SB. Computational fluid dynamics modeling and experimental studies of oil-in-water emulsion microfiltration in a flat sheet membrane using Eulerian approach. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2014.08.036] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Devereux PD, O'Callaghan SM, Walsh MT, McGloughlin T. Mass Transport Disturbances in the Distal Graft/Artery Junction of a Peripheral Bypass Graft. Proc Inst Mech Eng H 2005; 219:465-76. [PMID: 16312106 DOI: 10.1243/095441105x34446] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Intimal hyperplasia (IH) development is a primary cause of failure of reconstructive bypass surgery. While the exact mechanism by which IH initiates and proliferates has yet to be fully elucidated, it is clear that the abnormal haemodynamics present in the downstream graft/artery junction are intrinsic in its development. Mass transport disturbances owing to abnormal haemodynamics have been associated with atherogenesis and it is for this reason that an investigation into transport of platelet-derived growth factor (PDGF), a known promoter of the intimal hyperplastic response, at the downstream graft/artery junction was carried out. A steady flow analysis in a three-dimensional, idealized, downstream graft/artery junction was carried out using commercial computational fluid dynamics software. It was found that there is a two-and-half fold increase in the transport of PDGF to the artery wall at the bed of the junction when compared with an idealized, healthy artery. The presence of secondary flows in the downstream arterial section also leads to large disturbances in mass transport. It was concluded that PDGF transport in the downstream graft/artery junction tends to be highly disturbed and that there may be a role of this disturbance in the initiation and subsequent development of distal anastomotic intimal hyperplasia.
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Affiliation(s)
- P D Devereux
- Centre for Applied Biomedical Engineering Research, Department of Mechanical and Aeronautical Engineering and the Material and Surface Science Institute, University of Limerick, Limerick, Ireland
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