Receptivity Studies on a Swept-Wing Model

dc.contributorSaric, William
dc.creatorWoodruff, Matthew Jeffery
dc.date.accessioned2012-07-16T15:56:32Z
dc.date.accessioned2012-07-16T20:21:00Z
dc.date.accessioned2017-04-07T19:59:55Z
dc.date.available2012-07-16T15:56:32Z
dc.date.available2012-07-16T20:21:00Z
dc.date.available2017-04-07T19:59:55Z
dc.date.created2011-05
dc.date.issued2012-07-16
dc.description.abstractA series of flight tests was performed using a swept-wing model mounted on a Cessna O-2 aircraft. The crossflow waves on the airfoil were excited by pneumatic spanwise-periodic distributed roughness elements (DREs). The objective of the experiment was to determine the roughness receptivity i.e. the relationship between roughness height and the amplitude of the unstable crossflow wave. The local skin-friction variation was measured using an array of calibrated and temperature-compensated hotfilm sensors. The amplitudes of the disturbance shear stress were compared to the amplitudes of the DREs. It was found that there is a relationship between the shear stress and DRE amplitude that needs to be studied more before any definitely conclusions can be made. It was also found that the sensitivity of the crossflow to DREs is highly dependent on the freestream turbulence levels.
dc.identifier.urihttp://hdl.handle.net/1969.1/ETD-TAMU-2011-05-9119
dc.language.isoen_US
dc.subjectlaminar flow control
dc.subjectlaminar to turbulent transition
dc.subjectswept wing flow control
dc.titleReceptivity Studies on a Swept-Wing Model
dc.typeThesis

Files