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International Journal of Fluid Mechanics Research
Главный редактор: Atle Jensen (open in a new tab)
Заместитель главного редактора: Valery Oliynik (open in a new tab)
Редактор-основатель: Victor T. Grinchenko (open in a new tab)

Выходит 6 номеров в год

ISSN Печать: 2152-5102

ISSN Онлайн: 2152-5110

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.1 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.0002 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

Indexed in

Study on Pressure Drop and Center Line Velocity Distribution Across Cosine Shaped Stenotic Model

Том 36, Выпуск 4, 2009, pp. 319-342
DOI: 10.1615/InterJFluidMechRes.v36.i4.30
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Краткое описание

Arterial stenosis refers to the swelling of the endothelial wall due to plaque deposition and the associated disease is known as atherosclerosis. A stenosed artery reduces the maximum flow of blood through it by putting more resistance to the flow. The pressure of blood in a coronary artery is considered to be one of the important contributors for the formation and progression of atherosclerosis. Therefore, in this paper, the impact of flow Reynolds number(Re) and degree of stenosis (S) on wall pressure near the stenosis in a part of coronary artery is studied considering laminar flow and modeling blood as both Newtonian and non-Newtonian fluid. The two-dimensional steady differential equations for conservation of mass and momentum is solved by finite difference method through stenosed arteris having mild (S = 25 %) to severe (S = 65 %) occlusions and under different regimes of flow Reynolds numbers ranging from 50 to 400. From the study, it is revealed that for all the cases a sharp variation in dimensionless wall pressure is observed near the zone of restriction. The peak centerline velocity in the stenosed region is more sensitive to a change in the degree of occlusion rather than change in the flow Re. From the study it is also revealed that at high Re regime the irreversible pressure loss coefficient (CI) becomes insensitive to Re values and can be approximated to be a function of S only.

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