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Technion Unsteady Wind Tunnel


Unsteady wind tunnel testing of NRELs stall-regulated, 21% thick, S809 wind turbine blade. The airfoil is mounted between two Plexiglas disks and pitched dynamically into the post-stall regime. Synchronously, the freestream is surged dynamically via downstream louver vanes. Surface pressures are scanned at high-speed and integrated to calculate the loads. From the Flow Control Laboratory of Prof. David Greenblatt. Photography by Dr.-Ing. Hanns Müller-Vahl. Edited by Linoy Gal-Goodwin.


For more information, see Müller-Vahl et al (2016):


Pulsed Coandă Effect Reciprocating Wind Energy Generator (CoRe)


Pulsed Coandă effect reciprocating wind energy technology demonstrator tested in an open-jet wind tunnel. One degree-of-freedom circular cylinder mounted on a pivot is counterbalanced by tension springs and loaded with a calibrated electromagnetic brake. Two diametrically disposed spanwise blowing slots are pulsed alternately to produce bi-directional transverse loads (lift) made possible by the Coandă-Effect.

See GTEP MSc. of Anan Garzozi: Exploitation of the Coandă effect for wind energy generation


Wind Energy Research Turbine Efficiency David Greenblatt Grand Technion Energy Program


Film made by American Technion Society. Wind Energy Research : Wind Turbine Efficiency A conversation with Prof. David Greenblatt of Technion-Israel Institute of Technology, Faculty of Mechanical Engineering and the Grand Technion Energy Program.


SIDS and the Dangers of Infant Suffocation


Filmed in the Flow Control Laboratory, Faculty of Mechanical Engineering, Technion – Israel Institute of Technology, under the direction of Prof. David Greenblatt. Undergraduate students Nadav Itzhak, Matteo Paradisi, Yosef Greenblatt and Omer Kupfer; and technician Eliahu Mashiah are acknowledged. Edited by Linoy Gal-Goodwin.


Fluidic Facemask for Airborne Transmission Mitigation


The Air-Screen fluidic facemask is used to block virus-laden aerosols and droplets from the face of the wearer, thereby mitigating the transmission of infections such as COVID-19. It employs a small, high-aspect-ratio, crossflow fan mounted on the visor of a filter-covered cap to produce a rectangular air jet, or screen, in front of the wearer’s face.
This research was performed by Dr. David Keisar, Dr. Anan Garzozi and Prof. David Greenblatt, in collaboration with Prof. Moshe Shoham

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