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over 5,000,000. The removable test section currently in use in the tunnel utilizes stretched Kevlar walls which allow sufficient air flow to exit the system while not disrupting the airflow within the test section. This causes an absence of background noise allows researchers to monitor the sounds coming from the test section with microphones in order to gain data regarding the airflow and turbulence of smooth airfoils and other objects. Along with chambers placed alongside the test section, this leads to the current test section being called "anechoic".
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142:. With a test section measuring 6 by 6 ft (1.8 by 1.8 m) and maximum wind speeds of approximately 262.6 ft/s (80.0 m/s), it is one of the largest university-owned wind tunnels in the United States, and is used for a wide variety of research projects within the college as well as being contracted out for commercial use, especially product testing. Professor William Devenport is the current director, and Dr. Aurelien Borgoltz is the assistant director.
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The
Stability Wind Tunnel is powered by a 600-horsepower motor which turns a 14 ft (4.3 m) propeller. In the 1990s, the fan was updated with new, custom-made blades built by Prince Aircraft Company. With the usual set-up, the wind tunnel can, at max velocity, attain a Reynolds Number of
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in 1940. The wind tunnel was used by NACA for deriving the dynamic stability of fixed models for nearly two decades. In 1958, shortly after being declared surplus, it was acquired by
Virginia Tech and was attached to the university's Randolph Hall, where it was re-activated in 1961, and remains
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The
Stability Wind Tunnel has been utilized for research by a number of private organizations. These include a NASA-sponsored acoustic test regarding the landing gear of the Boeing 777 and simulated maneuvers of a scale aircraft in order to obtain data for descent of the aircraft.
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The majority of the data is currently received and analyzed by a
National Instruments mainframe, alongside a number of amplifiers and other assorted equipment.
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of the topic and provide significant coverage of it beyond a mere trivial mention. If notability cannot be shown, the article is likely to be
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Department of
Aerospace and Ocean Engineering, College of Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA
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active to this day, currently being operated by the
Department of Aerospace and Ocean Engineering.
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is a medium-scale wind tunnel located at
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Aerodynamics and
Acoustics of the Virginia Tech Stability Tunnel Anechoic System
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