Convection in the closed Brayton cycle. Annual summary report No. 3, 1 April 1976--31 March 1977
Technical Report
·
OSTI ID:6802995
To correspond to conditions expected in components in the closed Brayton cycle, analyses and experiments were conducted for forced convective heat transfer to gases and gas mixtures flowing in ducts. The range of interest was 0.2 = or > than Pr = or > than 0.7, representing mixtures of inert gases. Numerical analyses predicted that existing scaling laws for gases would not represent the Prandtl number dependence adequately for laminar or turbulent flow. Measurements with an argon-helium mixture confirmed the trends of the predictions for turbulent flow in circular tubes. The wall turbulent Prandtl number was determined for 0.4 = or > than Pr = or > than 0.5. (Author)
- Research Organization:
- Arizona Univ., Tucson (USA). Engineering Experiment Station
- DOE Contract Number:
- N00014-75-C-0694
- OSTI ID:
- 6802995
- Report Number(s):
- AD-A-047262
- Country of Publication:
- United States
- Language:
- English
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