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A Universal Vortex-Formation Law for Insect Hovering
David Greenblatt
Flapping insect wings generate leading-edge vortices (LEVs) that produce much of the lift required for hovering, yet the frequency governing their formation has not been connected…
Nanosecond DBD-Induced Shock and Thermal Perturbations on Blunt Bodies in Hypersonic Flow
Nadav Friedman, Kostiantyn Kuzmenko, Oshri Ifergan +1
Nanosecond-pulsed dielectric barrier discharge (DBD) plasma actuators were investigated on a generic blunt body in a Mach 6 Ludwieg tube to characterize the pressure and thermal pe…
Frequency Scaling Laws for Flat Plate Wing Active Separation Control
Stefan Vey, Christian Oliver Paschereit, David Greenblatt
Dimensionless frequency scaling laws for active separation control on flat-plate wings, using dielectric barrier discharge plasma actuators, were examined on the basis of maximum i…
Airfoil Boundary Layer Bubble Separation and Transition in a Surging Stream
David Greenblatt, Hanns Müller-Vahl, Christoph Strangfeld
The effect of high-amplitude harmonic surging on airfoil laminar separation bubbles was investigated theoretically, and experimentally in a dedicated surging-flow wind tunnel. A ge…