Dynamic stall modelling on airfoils based on strong viscous-inviscid interaction coupling

Riziotis, VA; Voutsinas, SG

dc.contributor.author	Riziotis, VA	en
dc.contributor.author	Voutsinas, SG	en
dc.date.accessioned	2014-03-01T01:28:11Z
dc.date.available	2014-03-01T01:28:11Z
dc.date.issued	2008	en
dc.identifier.issn	0271-2091	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18752
dc.subject	dynamic stall	en
dc.subject	boundary layer methods	en
dc.subject	panel methods	en
dc.subject	viscous-inviscid interaction	en
dc.subject.classification	Computer Science, Interdisciplinary Applications	en
dc.subject.classification	Mathematics, Interdisciplinary Applications	en
dc.subject.classification	Mechanics	en
dc.subject.classification	Physics, Fluids & Plasmas	en
dc.subject.other	VORTEX METHODS	en
dc.subject.other	FLOW	en
dc.title	Dynamic stall modelling on airfoils based on strong viscous-inviscid interaction coupling	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/fld.1525	en
heal.identifier.secondary	http://dx.doi.org/10.1002/fld.1525	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	The prediction of the aerodynamic performance of pitching airfoils in stall conditions is considered in the context of strong viscous-inviscid interaction modelling. The aim of the work is to demonstrate the capabilities of a low-cost dynamic stall model well suited for engineering applications. The model is formulated on the basis of a standard panel method combined with a vortex blob approximation of the wake. The development of the boundary layer over the airfoil and the evolution of the shear layer in the wake are taken into account by means of strong viscous-inviscid interaction coupling. To this end a transpiration layer is added to the inviscid formulation which represents the displacement effect viscosity results in the flow while the non-linear coupled equations are solved simultaneously. Separation is modelled by introducing a second wake originating from the separation point ('double-wake' concept) which is provided as part of the boundary layer Solution. The theoretical presentation of the model is supported with favourable comparisons to four sets of wind tunnel measurements. Copyright (C) 2007 John Wiley & Sons, Ltd.	en
heal.publisher	JOHN WILEY & SONS LTD	en
heal.journalName	INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS	en
dc.identifier.doi	10.1002/fld.1525	en
dc.identifier.isi	ISI:000252520800004	en
dc.identifier.volume	56	en
dc.identifier.issue	2	en
dc.identifier.spage	185	en
dc.identifier.epage	208	en