High Reynolds number turbulent flow past a rotating cylinder

Karabelas, SJ; Koumroglou, BC; Argyropoulos, CD; Markatos, NC

dc.contributor.author	Karabelas, SJ	en
dc.contributor.author	Koumroglou, BC	en
dc.contributor.author	Argyropoulos, CD	en
dc.contributor.author	Markatos, NC	en
dc.date.accessioned	2014-03-01T01:37:35Z
dc.date.available	2014-03-01T01:37:35Z
dc.date.issued	2012	en
dc.identifier.issn	0307-904X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21564
dc.subject	Magnus effect	en
dc.subject	Rotating cylinder	en
dc.subject	Turbulent separated flows	en
dc.subject	Vortex shedding	en
dc.subject.classification	Engineering, Multidisciplinary	en
dc.subject.classification	Mathematics, Interdisciplinary Applications	en
dc.subject.classification	Mechanics	en
dc.subject.other	Acting force	en
dc.subject.other	Circumferential speed	en
dc.subject.other	Free-stream	en
dc.subject.other	High Reynolds number	en
dc.subject.other	High spins	en
dc.subject.other	Load coefficients	en
dc.subject.other	Magnus effect	en
dc.subject.other	Numerical computations	en
dc.subject.other	Numerical data	en
dc.subject.other	Reynolds-Averaged Navier-Stokes equations	en
dc.subject.other	Rotating cylinders	en
dc.subject.other	Rotational rates	en
dc.subject.other	Spin ratio	en
dc.subject.other	Turbulent separated flow	en
dc.subject.other	Finite volume method	en
dc.subject.other	Navier Stokes equations	en
dc.subject.other	Reynolds number	en
dc.subject.other	Rotation	en
dc.subject.other	Turbulence models	en
dc.subject.other	Vortex flow	en
dc.subject.other	Cylinders (shapes)	en
dc.title	High Reynolds number turbulent flow past a rotating cylinder	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.apm.2011.07.032	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.apm.2011.07.032	en
heal.language	English	en
heal.publicationDate	2012	en
heal.abstract	High Reynolds-number flow over a rotating cylinder is investigated by two-dimensional numerical computations. The Reynolds-Averaged Navier-Stokes (RANS) equations are solved via the finite-volume method and they are closed by a modified k-epsilon turbulence model. The spin ratio a is defined as the ratio between the cylinder's circumferential speed velocity to the free-stream varies from 2 to 8. The flow is examined at Reynolds numbers from 5 x 10(5) to 5 x 10(6), which is considered to be an interesting range for industrial flows. Available experimental and numerical data were used to verify the validity of the implemented procedure. The results revealed stabilization of the acting forces at high spin rates, thus indicating a flowfield with suppressed vortex-shedding activity, as it is expected, in accordance with theoretical considerations in previous studies. Load coefficients were found to be inversely proportional to the Reynolds number for most of the examined rotational rates. (C) 2011 Elsevier Inc. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE INC	en
heal.journalName	Applied Mathematical Modelling	en
dc.identifier.doi	10.1016/j.apm.2011.07.032	en
dc.identifier.isi	ISI:000296113400031	en
dc.identifier.volume	36	en
dc.identifier.issue	1	en
dc.identifier.spage	379	en
dc.identifier.epage	398	en