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Correlation of Forced-convection Heat-transfer Data for Air Flowing in Smooth Platinum Tube with Long-approach Entrance at High Surface and Inlet-air TemperaturesA heat-transfer investigation was conducted with air in an electrically heated platinum tube with long-approach entrance, inside diameter of 0.525 inch, and effective heat-transfer length of 24 inches over ranges of Reynolds number up to 320,000, average inside-tube-wall temperature up to 3053 degrees R, and inlet-air temperature up to 1165 degrees R. Correlation of data by the conventional Nusselt relation resulted in separation of data with tube-wall temperature. Good correlation was obtained, however, by use of a modified Reynolds number.
Document ID
19930086364
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Desmon, Leland G
Sams, Eldon W
Date Acquired
August 16, 2013
Publication Date
November 2, 1950
Report/Patent Number
NACA-RM-E50H23
Accession Number
93R15654
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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