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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

Impulsively Started Flow of a Micropolar Fluid Past a Circular Cylinder

Том 36, Выпуск 5, 2009, pp. 424-446
DOI: 10.1615/InterJFluidMechRes.v36.i5.30
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Краткое описание

The characteristics of the unsteady laminar impulsive flow of micropolar fluid over a horizontal circular cylinder is investigated. The conservation equations for mass, linear momentum and angular momentum are solved in order to determine the flow structure and associated hydrodynamic forces and couple. The main controlling parameters are Reynolds number and material parameters of micropolar fluid. The dimensionless material parameters are the vortex viscosity, the spin gradient viscosity and the micro-inertia density. These parameters are selected in the range from 0 to 10 while the Reynolds number is considered up to 180. The results have shown that the micro-inertia density has no effect on micropolar fluid flow characteristics while the effect of both vortex viscosity and spin gradient viscosity is noticeable. The study has shown that both the Strouhal number and the amplitude of oscillating lift force decrease with the increase of vortex viscosity and with the increase, but with a little degree, of spin gradient viscosity. The results have revealed that the drag coefficient does not exhibit a clear general trend as the material parameters vary. The damping effect of micropolar fluid on vortex shedding process should draw the attention to artificially made micropolar fluids as a possible control method for flow separation.

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