ROTORCRAFT FLIGHT IN INTERACTION WITH OBSTACLES

Andronikos, Theologos; Manolas, Dimitris; Riziotis, Vasilis; Voutsinas, Spyridon

dc.contributor.author	Andronikos, Theologos
dc.contributor.author	Manolas, Dimitris
dc.contributor.author	Riziotis, Vasilis
dc.contributor.author	Voutsinas, Spyridon
dc.date.accessioned	2022-02-23T10:17:50Z
dc.date.available	2022-02-23T10:17:50Z
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/54812
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.22510
dc.rights	Αναφορά Δημιουργού-Όχι Παράγωγα Έργα 3.0 Ελλάδα	*
dc.rights.uri	http://creativecommons.org/licenses/by-nd/3.0/gr/	*
dc.subject	Rotor aerodynamics	en
dc.subject	interaction with obstacles	en
dc.subject	wake interactions	en
dc.title	ROTORCRAFT FLIGHT IN INTERACTION WITH OBSTACLES	en
heal.type	conferenceItem
heal.language	en
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2017-09-17
heal.bibliographicCitation	Andronikos, Theologos E., et al. "Rotorcraft flight in interaction with obstacles." (2017).	en
heal.abstract	Helicopter flight in time and spatially varying inflow environments sets special requirements for its designand it is closely linked to its utilization and operation envelope (classification). Commonly, definition of the abovementioned non-conventional inflow conditions in the standards relies on evidence coming from pilots’ reports while theoretical or experimental studies usually follow either to confirm or to revise or to update provisions of the standards. Such a non conventional flight scenario, which is the focus of the present paper, is when a helicopter performs hover flight in proximity to obstacles. Helicopters are largely employed in missions within confined areas, regions in which the flight of the helicopter is limited in some direction by the terrain or by the presence of obstacles. During approaching or landing under the above described circumstances an unsteady flow field is developed in the region between the rotor and the obstacle that has not been studied in detail. Moreover, interaction between the rotor and the obstacle is not yet well understood especially in cases that obstacles generate wakes. As a result of this interaction unsteady aerodynamic loads are developed over the obstacles and flight characteristics and controllability of the rotor might be affected.	en
heal.fullTextAvailability	false
heal.conferenceName	European Rotorcraft Forum	en
heal.conferenceItemType	full paper