|
Unitary Plan Wind Tunnel
The Unitary Plan Wind Tunnel, located at the NASA Ames Research Center in Moffett Federal Airfield, Mountain View, California, United States, is a research facility used extensively to design and test new generations of aircraft, both commercial and military, as well as NASA space vehicles, including the Space Shuttle. The facility was completed in 1955 and is one of five facilities created after the 1949 Unitary Plan Act supporting aeronautics research. Background After the construction of the Variable Density Tunnel at Langley in 1921, the National Advisory Committee for Aeronautics built a variety of technical research facilities upon which the American aircraft industry was based. These facilities enabled the American aircraft industry to dominate the skies in both commercial and military aviation. By 1945, America's lead in the field of aviation seemed to be evaporating. The technological achievements of the German missiles and jet aircraft indicated a lag in American aero ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overview Of The Tunnel
*
*
{{disambiguation ...
Overview may refer to: * Overview article, an artícle that summarizes the current state of understanding on a topic * Overview map, generalised view of a geographic area See also * Summary (other) * Outline (list) * ''A Brief Overview'' * Overview and Scrutiny * Overview effect The overview effect is a cognitive shift reported by some astronauts while viewing the Earth from space. Researchers have characterized the effect as "a state of awe with self-transcendent qualities, precipitated by a particularly striking visu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wind Shear's Full Scale, Rolling Road, Automotive Wind Tunnel
Wind shear (or windshear), sometimes referred to as wind gradient, is a difference in wind speed and/or direction over a relatively short distance in the atmosphere. Atmospheric wind shear is normally described as either vertical or horizontal wind shear. Vertical wind shear is a change in wind speed or direction with a change in altitude. Horizontal wind shear is a change in wind speed with a change in lateral position for a given altitude. Wind shear is a microscale meteorological phenomenon occurring over a very small distance, but it can be associated with mesoscale or synoptic scale weather features such as squall lines and cold fronts. It is commonly observed near microbursts and downbursts caused by thunderstorms, fronts, areas of locally higher low-level winds referred to as low-level jets, near mountains, radiation inversions that occur due to clear skies and calm winds, buildings, wind turbines, and sailboats. Wind shear has significant effects on the control of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blacksburg, Virginia
Blacksburg is an incorporated town in Montgomery County, Virginia, United States, with a population of 44,826 at the 2020 census. Blacksburg, as well as the surrounding county, is dominated economically and demographically by the presence of Virginia Tech (Virginia Polytechnic Institute and State University). Blacksburg, Christiansburg, and the city of Radford are the three principal jurisdictions of the Blacksburg-Christiansburg Metropolitan Statistical Area, which encompasses those jurisdictions and all of Montgomery, Pulaski, and Giles counties for statistical purposes. The MSA has an estimated population of 181,863 and is currently one of the faster-growing MSAs in Virginia. Blacksburg High School, which in 2013 opened a new building, is often ranked among the top schools of the nation for its academics. Its soccer, track, and cross-country teams are also among the top in the state . Blacksburg was the scene of the Virginia Tech shootings on April 16, 2007, when 32 peo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virginia Tech Stability Wind Tunnel
The Virginia Tech Stability Wind Tunnel is a medium-scale wind tunnel located at Virginia Polytechnic Institute and State University (Virginia Tech) in Blacksburg, Virginia. With a test section measuring and maximum wind speeds of approximately , it is one of the largest university-owned wind tunnels in the United States,Fleming, J. (2010)Limited budgets can drive innovationWind Tunnel International 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. History The Stability Wind Tunnel was first built by the National Advisory Committee on Aeronautics (NACA), the predecessor to NASA, at Langley Research Center The Langley Research Center (LaRC or NASA Langley), located in Hampton, Virginia, United States of America, is the oldest of NASA's field centers. It directly borders L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variable Density Tunnel
The Variable Density Tunnel (VDT) was the second wind tunnel at the National Advisory Committee for Aeronautics (NACA) Langley Research Center. Proposed by German aerospace engineer, Max Munk in May, 1921, it was the world's first variable density wind tunnel and allowed for more accurate testing of Model aircraft, small-scale models than could be obtained with atmospheric wind tunnels. It was actively used as a wind tunnel from 1923 until its retirement in the 1940s. Langley Research Center historian, James R. Hansen, wrote that the VDT provided results superior to the atmospheric wind tunnels used at the time and was responsible for making NACA, the precursor to NASA, "a world leader in aerodynamic research". It is now on display on the Langley grounds, near the old Reid Conference Center and is a National Historic Landmark. Technical purpose In order to accurately measure the aerodynamics of scale models, the density of the air used in a wind tunnel must also be scaled to repl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RWDI
Established in 1972, Rowan Williams Davies & Irwin Inc. (RWDI) is a specialty consulting engineering firm. The RWDI group of companies has offices in Canada, USA, United Kingdom, India, China, Singapore, Hong Kong, Malaysia and Australia. The company's headquarters is based in Guelph, Ontario, Canada. RWDI is a wind engineering and environmental engineering consulting firm and has featured on numerous television documentaries involving wind engineering and related services for the world's tallest skyscrapers and landmark structures. The firm's facilities include five boundary layer wind tunnels, an open channel water flume, MM5 computer models for simulating atmospheric weather conditions and advanced computer modelling capabilities including computational fluid dynamics (CFD). RWDI also has in-house model shops at each of its wind tunnel facilities that use stereolithography technology, integrated data acquisition, storage and processing systems, computer-aided drafting, and a bro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PHEDRA (Arc-jet) High Enthalpy Wind Tunnel
The PHEDRA High Enthalpy low density Wind Tunnel, located at the ICARE Laboratory in Orléans, France, is a research facility used extensively for fundamental and applied research on non equilibrium plasma flows and planetary atmospheric entries. Its name is an acronym for soufflerie à Plasma Hors Equilibre de Rentreés Atmosphériques . Phedra wind tunnel takes part of the European Landscape Network portal MERIL. History PHEDRA (ex. SR5) wind tunnel was located in the Aerothermodynamics Laboratory from the CNRS (France's national scientific research center) in Meudon, France until 2000. The wind tunnel was then moved to the ICARE Laboratory in Orleans, resulting from the merging of the Aerothermodynamics Laboratory and the LCSR (Combustion and Reactive Systems Laboratory). This facility is part of the experimental plateform ''FAST'' (Facilities for Aerothermodynamics & Supersonic Technologies, contact Viviana Lago head of FAST team, viviana.lago@cnrs-orlean.fr) belonging in ICA ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ONERA
The Office National d'Etudes et de Recherches Aérospatiales (ONERA) is the French national aerospace research centre. It is a public establishment with industrial and commercial operations, and carries out application-oriented research to support enhanced innovation and competitiveness in the aerospace and defense sectors. ONERA was created in 1946 as "Office National d’Études et de Recherches Aéronautiques". Since 1963, its official name has been "Office National d’Études et de Recherches Aérospatiales". However, in January 2007, ONERA has been dubbed "The French Aerospace Lab" to improve its international visibility. History ONERA's historic roots are in the Paris suburb of Meudon, south of Paris. As early as 1877, this site hosted an aeronautical research center for military aerostats (balloons): Etablissement central de l’aérostation militaire. ONERA was created in May 1946 to relaunch aeronautics research, an activity that had gone into hibernation during t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eight-Foot High Speed Tunnel (Hampton, Virginia)
The Eight-Foot High Speed Tunnel, also known as Eight-Foot Transonic Tunnel, was a wind tunnel located in Building 641 of NASA's Langley Research Center in Hampton, Virginia. It was a National Historic Landmark. The tunnel was completed in 1936 at a cost of $36,266,000. Because of its high speed and Bernoulli's principle, the pressure in the test section is much lower than that in the rest of the tunnel. This required a structure that could withstand an inward force due to the pressure difference. Instead of steel construction, it was built from reinforced concrete with walls up to 1 ft (0.3 m) thick. This resulted in an "igloo-like" structure at the test section. The wind tunnel was designed as a single-return tunnel capable of moving air at speeds up to a Mach number up to 0.75. It was powered by an electric motor. It was repowered to to give Mach number 1 capability in 1945. In 1947, the speed was increased to a Mach number of 1.2 with the installation of a contoured nozzl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
