File:JPL sphere drag.jpg
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Sphere drag experiment.May 25, 1962
Summary[edit]
| Description |
English: In 1962, JPL conducted research in low-density gas dynamics, studying the drag on a sphere in a supersonic low-density flow environment, at various temperatures and speeds (Mach 1.8 to 4.4). Experiments were conducted in JPL’s Low Density Wind Tunnel. Nozzles were wrapped in a copper coil containing liquid nitrogen to cool the apparatus. A steel or bronze ball from 1/32 to 1/8 inch in size was suspended from fine tungsten wire in the jet. Two 8 mm movie projector lamps with built-in reflectors were placed at the edge of the jet and used to raise the sphere temperature to about 1,000 kelvins.
Sphere drag experiment.May 25, 1962 Requested by: SidwellPhoto by: John Hewitt |
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| Source | https://www.jpl.nasa.gov/blog/?page=3&search=&blog_columns=Slice+of+History&blog_authors= |
| Author | NASA |
Licensing[edit]
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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| current | 11:15, 13 January 2019 | | 2,431 × 3,000 (852 KB) | Pline (talk | contribs) | User created page with UploadWizard |
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