Organized modes and the three-dimensional transition to turbulence in the incompressible flow around a NACA0012 wing

Hoarau, Y; Braza, M; Ventikos, Y; Faghani, D; Tzabiras, G

dc.contributor.author	Hoarau, Y	en
dc.contributor.author	Braza, M	en
dc.contributor.author	Ventikos, Y	en
dc.contributor.author	Faghani, D	en
dc.contributor.author	Tzabiras, G	en
dc.date.accessioned	2014-03-01T01:19:24Z
dc.date.available	2014-03-01T01:19:24Z
dc.date.issued	2003	en
dc.identifier.issn	0022-1120	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15468
dc.subject	Incompressible Flow	en
dc.subject	Three Dimensional	en
dc.subject	Transition To Turbulence	en
dc.subject.classification	Mechanics	en
dc.subject.classification	Physics, Fluids & Plasmas	en
dc.subject.other	Bifurcation (mathematics)	en
dc.subject.other	Incompressible flow	en
dc.subject.other	Oscillations	en
dc.subject.other	Reynolds number	en
dc.subject.other	Turbulence	en
dc.subject.other	Flow structures	en
dc.subject.other	Fluid mechanics	en
dc.subject.other	aerodynamics	en
dc.subject.other	direct numerical simulation	en
dc.subject.other	fluid mechanics	en
dc.subject.other	incompressible flow	en
dc.subject.other	shear layer	en
dc.subject.other	turbulence	en
dc.subject.other	wing	en
dc.title	Organized modes and the three-dimensional transition to turbulence in the incompressible flow around a NACA0012 wing	en
heal.type	journalArticle	en
heal.identifier.primary	10.1017/S0022112003006530	en
heal.identifier.secondary	http://dx.doi.org/10.1017/S0022112003006530	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	The transition to turbulence in the incompressible flow around a NACA0012 wing at high incidence is studied by DNS in the Reynolds number range 800-10 000. Two main routes are identified for the two-dimensional transition mechanisms: that to aperiodicity beyond the von Kármán mode via a period-doubling scenario and the development of a shear-layer instability, forced by the fundamental oscillation of the separation point downstream of the leading edge. The evolution of the global parameters as well as the variation law of the shear-layer instability wavelength are quantified. The history of the three-dimensional transition mechanisms from a nominally two-dimensional flow structure is identified beyond the first bifurcation, as well as the preferred spanwise wavelengths.	en
heal.publisher	CAMBRIDGE UNIV PRESS	en
heal.journalName	Journal of Fluid Mechanics	en
dc.identifier.doi	10.1017/S0022112003006530	en
dc.identifier.isi	ISI:000188378400003	en
dc.identifier.volume	496	en
dc.identifier.issue	496	en
dc.identifier.spage	63	en
dc.identifier.epage	72	en