Comprehensive experimental studies on vortex dynamics over military wing configurations in IAR

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TypeBook Chapter
Book titleRTO-TR-AVT-080 - Vortex Breakdown over Slender Delta Wings
Subjectleading-edge vortex; vortex breakdown; slender wing; wind tunnel experiments
AbstractVortex dynamics over more than 50 types of military wing configurations have been experimentally investigated. Diamond and delta wings with sweep back angles from 55° to 75° have been tested. The experiments were conducted in two wind tunnels and a water tunnel with more than 10,000 runs at different test conditions. Investigations include flow visualisations (surface and off-surface flow field and vortex behavior), surface pressures (steady and unsteady pressure), air loads (steady and unsteady loads) and motion histories (harmonic, ramp-and-hold, free-to-roll and “forced” free-to-roll), geometry and Renumber effects in pitch, roll and coning motion plans. The ranges of angle of attack, roll angle and coning angle are 0°~90°, ±180° and ±360° respectively with maximum non-dimensional frequency 0.2 in pitch and roll and 0.6 in coning respectively. The maximum Re number is 3x106 and maximum Mach number is 0.4 in wind tunnel experiments. The comprehensive data sets have been edited into eight volumes of IAR reports while only a brief of the program is presented here.
Publication date
PublisherNATO Science and Technology Organization
Copyright noticeThis information may be freely used and copied for educational and other non-commercial purposes, provided that any reproduction of data be accompanied by an acknowledgement of NATO Science and Technology Organization as the source ( © NATO STO). This does not apply to the pages and images with explicitly reserved reproduction right : © followed by the right owner and the year of first circulation. Reproduction of the latter requires prior authorization from the author.
AffiliationNational Research Council Canada; NRC Institute for Aerospace Research
Peer reviewedYes
NRC numberAL-2007-0105
NPARC number8930844
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Record identifier553d37bb-8c61-4b46-bd47-165cb5e716ce
Record created2009-04-23
Record modified2016-06-23
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