Doubly-fluted tubes and enhanced tubes in confined crossflow. Annual report, August 1987-July 1988
Technical Report
·
OSTI ID:5413543
This report describes the results of an ongoing project to investigate the thermal hydraulic characteristics of spirally-enhanced tubes and annuli in heat-exchanger applications. Heat-transfer enhancement and pressure-drop increase data for the turbulent-flow regime available in the literature for over sixty spirally enhanced tubes fabricated by different manufacturers was analyzed. A geometric nondimensional parameter known as severity was used to collapse data for Nusselt number increase, friction factor increases, and enhancement efficiency for all these tubes.
- Research Organization:
- Ohio State Univ., Columbus, OH (USA). High-Energy Physics Lab.
- OSTI ID:
- 5413543
- Report Number(s):
- PB-89-217921/XAB
- Country of Publication:
- United States
- Language:
- English
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