Design features and operational characteristics of the Langley 0.3-meter transonic cryogenic tunnel
- Kilgore, R. A.
- Dec 1, 1976.
- Physical Description:
- 1 electronic document
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- Experience with the Langley 0.3 meter transonic cryogenic tunnel, which is fan driven, indicated that such a tunnel presents no unusual design difficulties and is simple to operate. Purging, cooldown, and warmup times were acceptable and were predicted with good accuracy. Cooling with liquid nitrogen was practical over a wide range of operating conditions at power levels required for transonic testing, and good temperature distributions were obtained by using a simple liquid nitrogen injection system. To take full advantage of the unique Reynolds number capabilities of the 0.3 meter transonic tunnel, it was designed to accommodate test sections other than the original, octagonal, three dimensional test section. A 20- by 60-cm two dimensional test section was recently installed and is being calibrated. A two dimensional test section with self-streamlining walls and a test section incorporating a magnetic suspension and balance system are being considered.
- Other Subject(s):
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19770005128.
Accession ID: 77N12071.
- No Copyright.
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