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Plume dispersion of the exhaust from a cryogenic wind tunnelAn analytical model was developed to predict the behavior of the plume exhausting from the cryogenic National Transonic Facility. Temperature, visibility, oxygen concentration, and flow characteristics of the plume are calculated for distance downwind of the stack exhaust. Negative buoyancy of the cold plume is included in the analysis. Compared to photographic observations, the model predicts the centerline trajectory of the plume fairly accurately, but underpredicts the extent of fogging. The diffusion coefficient is revised to bring the model into better agreement with observations.
Document ID
19870016112
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Lassiter, William S. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 5, 2013
Publication Date
June 1, 1987
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
NASA-TM-89148
NAS 1.15:89148
Report Number: NASA-TM-89148
Report Number: NAS 1.15:89148
Accession Number
87N25545
Funding Number(s)
PROJECT: RTOP 505-61-01-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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