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Cryogenic wind tunnels. IIISpecific problems pertaining to cryogenic wind tunnels, including LN(2) injection, GN(2) exhaust, thermal insulation, and automatic control are discussed. Thermal and other physical properties of materials employed in these tunnels, properties of cryogenic fluids, storage and transfer of liquid nitrogen, strength and toughness of metals and nonmetals at low temperatures, and material procurement and qualify control are considered. Safety concerns with cryogenic tunnels are covered, and models for cryogenic wind tunnels are presented, along with descriptions of major cryogenic wind-tunnel facilities the United States, Europe, and Japan. Problems common to wind tunnels, such as low Reynolds number, wall and support interference, and flow unsteadiness are outlined.
Document ID
19910032944
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kilgore, Robert A.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 15, 2013
Publication Date
October 1, 1987
Subject Category
Research And Support Facilities (Air)
Accession Number
91A17567
Distribution Limits
Public
Copyright
Other

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