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Continuous laminar smoke generatorA smoke generator capable of emitting a very thin, laminar stream of smoke for use in high detail flow visualization was invented. The generator is capable of emitting a larger but less stable rope of smoke. The invention consists of a pressure supply and fluid supply which supply smoke generating fluid to feed. The feed tube is directly heated by electrical resistance from current supplied by power supply and regulated by a constant temperature controller. A smoke exit hole is drilled in the wall of feed tube. Because feed tube is heated both before and past exit hole, no condensation of smoke generating occurs at the smoke exit hole, enabling the production of a very stable smoke filament. The generator is small in size which avoids wind turbulence in front of the test model.
Document ID
19850012868
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Weinstein, L. M.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 12, 2013
Publication Date
January 15, 1985
Subject Category
Research And Support Facilities (Air)
Report/Patent Number
NAS 1.71:LAR-13014-1
Patent Number: NASA-CASE-LAR-13014-1
Patent Application Number: US-PATENT-APPL-SN-527918
Patent Number: US-PATENT-4,493,211
Report Number: NAS 1.71:LAR-13014-1
Accession Number
85N21178
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-LAR-13014-1|US-PATENT-4,493,211
Patent Application
US-PATENT-APPL-SN-527918
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