Show simple item record

dc.contributor.authorAhmed, S.
dc.contributor.authorChandrasekhara, M.S
dc.date.accessioned2016-10-03T20:17:40Z
dc.date.available2016-10-03T20:17:40Z
dc.identifier.citationS. Ahmed, and M.S.Chandrasekhara, モReattachment Studies of an Oscillating Airfoil Dynamic Stall Flowfieldヤ, (AIAA Paper 91-3225), AIAA Journal, Vol. 32, No. 5, May 1994, pp. 1006 - 1012.
dc.identifier.urihttp://hdl.handle.net/10945/50065
dc.descriptionThe article of record as published may be found at http://dx.doi.org/10.2514/3.12087en_US
dc.description.abstractThe reattaching flow over an oscillating airfoil executing large-amplitude sinusoidal motion around a mean angle of attack of 10 deg has been studied using the techniques of stroboscopic schlieren, two-component laser Doppler velocimetry, and point diffraction interferometry, for a freestream Mach number of 0.3 and a reduced frequency of 0.05. The results show that the dynamically stalled flow reattaches in a process that begins when the airfoil is very close to the static stall angle on its downward stroke and progresses over the airfoil through a large range of angles of attack as the airfoil angle decreases to about 6 deg. The airfoil suction peak shows a dramatic rise as the static stall angle is approached, and the velocity profiles develop such that the flow near the surface is accelerated. The process completes through the disappearance of a separation bubble that forms over the airfoil.
dc.description.sponsorshipArmy Research Office Grant MIPR-ARO-132-90
dc.description.sponsorshipAir Force Office of Scientific Research (AFOSR), MIPR-91-0007
dc.description.sponsorshipNAVAIR
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.titleReattachment Studies of an Oscillating Airfoil Dynamic Stall Flowfielden_US
dc.typeArticleen_US
dc.description.funderArmy Research Office Grant MIPR-ARO-132-90
dc.description.funderAir Force Office of Scientific Research (AFOSR), MIPR-91-0007
dc.description.funderNAVAIR


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record