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Reynolds number effects on pressure loss and turbulence characteristics of four tube-bundle heat exchangersThe aerodynamic characteristics of pressure loss and turbulence on four tube-bundle configurations representing heat-exchanger geometries with nominally the same heat capacity were measured as a function of Reynolds numbers from about 4000 to 400,000 based on tube hydraulic diameter. Two configurations had elliptical tubes, the other two had round tubes, and all four had plate fins. The elliptical-tube configurations had lower pressure loss and turbulence characteristics than the round-tube configurations over the entire Reynolds number range.
Document ID
19840017577
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Gentry, L., Jr. (NASA Langley Research Center Hampton, VA, United States)
Gentry, C. L., Jr. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 4, 2013
Publication Date
June 1, 1983
Subject Category
Aerodynamics
Report/Patent Number
NASA-TM-85807
NAS 1.15:85807
L-15721
Accession Number
84N25645
Funding Number(s)
PROJECT: RTOP 505-31-53
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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