Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 8 of 8 for “"Trailing-edge Separation"”.
-
Open-loop and closed-loop trailing-edge separation control on a natural laminar flow airfoil
… recovery in the aft 30% of the chord near the trailing edge results in the separation of the flow from the airfoil surface at the off-design conditions. The goal of this study was to control boundary-layer separation across the trailing-edge region of the airfoil in an effort to improve the …
-
An Experimental Study of Unsteady Flow Over Airfoils Near Stall
… (less than 0.040). These airfoils exhibited trailing-edge separation which moved forward on the airfoil as the angle of attack was increased into stall. The separation was not uniform along the span and the surface flowfield was indicative of stall-cell structures observed by others. This …
-
Boundary element simulation of oscillating foil with leading-edge separation
… a numerical model to account for the leading-edge separation for the boundary element simulation of the oscillating foil with potential flow assumption. Similar to the trailing-edge separation, the leading-edge separation is modeled by a thin shear layer. Because the leading edge is rounded …
-
Investigation and Simulation of Ion Flow Control over a Flat Plate and Compressor Cascade
… plate. Ion flow control successfully prevented trailing edge separation in a compressor cascade for angles of attack of 6° and 12°; however, the flow control scheme was not able to prevent leading edge separation for angle of attack equal to 12°. The ion flow control CFD model accurately …
-
Aerodynamics and aeroacoustics of flap side-edges
… aerodynamics and aeroacoustics of a flap side-edge. A porous side-edge treatment was applied to the flap side-edge in an attempt to reduce airframe noise. Measurements taken as part of the experimental study were forces, on-surface pressures, particle image velocimetry, hotwire anemometry and …
-
Measurement and Uncertainty Analysis of Transonic Fan Response to Total Pressure Inlet Distortion
… measurement point. The results indicate that a trailing edge separation and reattachment cycle experienced by the blades caused variations in the work input to the flow and resulted in a non-uniform rotor outlet flow profile. The details of the aerodynamic process and several means for improving …
-
Three-dimensional Mechanisms in Compressor Flows
… limits design by not considering the effect, on separation and loss, of the pressure gradient on the surface of the blade perpendicular to the meridional direction, here known as the transverse pressure gradient. The results of this thesis are contained within four chapters. The first two …
-
Spatio-temporal localization of canonical dynamic stall flow scales across varying Reynolds numbers
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-08-01