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The Variable Density Tunnel (VDT) was the … 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 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.enter and is a National Historic Landmark.
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1921
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1921
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The Variable Density Tunnel at Langley Research Center with the drive motor , compressor piping , and an operator .
, 1929
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Steel pressure shell, air compressor, drive motor, internal test section
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"NACA Technical Report 460: The Characteristics of 78 Related Airfoil Sections from Tests in the Variable-Density Wind Tunnel"
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nhl
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| rdfs:comment |
The Variable Density Tunnel (VDT) was the … 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 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 Natio old Reid Conference Center and is a Natio
|
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Variable Density Tunnel
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