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AEDC Hypervelocity Wind Tunnel 9 is a hypersonic wind tunnel owned by the United States Air Force and operated by National Aerospace Solutions The facility can generate high Mach numbers and high Reynolds for hypersonic ground testing and the validation of computational simulations for the Air Force and Department of Defense.
Hypersonic United States Located at Arnold Air Force Base and operated by the United States Air Force: Aircraft Research Association [6] Operational 2.74 m × 2.44 m × 3.66 m (9 ft 0 in × 8 ft 0 in × 12 ft 0 in) Transonic United Kingdom Transonic closed circuit, continuous flow wind tunnel. Mach number 0 - 1.4.
NASA Langley's Hypersonic Facilities Complex, 1969. A hypersonic wind tunnel is designed to generate a hypersonic flow field in the working section, thus simulating the typical flow features of this flow regime - including compression shocks and pronounced boundary layer effects, entropy layer and viscous interaction zones and most importantly high total temperatures of the flow.
The Metropolitan Transportation Authority, Port Authority of New York and New Jersey, New York State Department of Transportation and Amtrak have many others. Many of the city's major bridges and tunnels have broken or set records. Opened in 1927, the Holland Tunnel was the world
The New York City Civilian Complaint Review Board (CCRB) is the board tasked with investigating complaints about alleged misconduct on the part of the New York City Police Department. The New York City Office of Collective Bargaining (OCB) regulates labor relations disputes and controversies with city employees, including certification of ...
The New York City Department of Education (NYCDOE) is the department of the government of New York City that manages the city's public school system. The City School District of the City of New York (more commonly known as New York City Public Schools ) is the largest school system in the United States (and among the largest in the world), with ...
The New York City School Construction Authority is considering breaking ground on a new elementary school in Brooklyn – across the street from a state Superfund site with a history of carcinogens.
The hypersonic shock tunnel is another impulse facility with a run time of 0.5 to 5.0 ms. The tunnel has a test section of 0.44 meters (diameter) by a length of 1 meter. The inviscid core is 0.17 m at Mach 8. It is capable of testing at Mach numbers from 5 to 16 and Reynolds numbers from 100 to 20 million per meter.