Heat transfer and fluid flow in regular rod arrays with opposing flow
Conference
·
OSTI ID:5800851
The heat transfer and fluid flow problem of opposing flow in the fully developed laminar region has been solved analytically for regular rod arrays. The problem is governed by two parameters: the pitch-to-diameter ratio and the Grashof-to-Reynolds number ratio. The critical Gr/Re ratios for flow separation caused by the upward buoyancy force on the downward flow were evaluated for a large range of P/D ratios of the triangular array. Numerical results reveal that both the heat transfer and pressure loss are reduced by the buoyancy force. Applications to nuclear reactors are discussed.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- EY-76-C-02-0016
- OSTI ID:
- 5800851
- Report Number(s):
- BNL-26165; CONF-791205-14; TRN: 79-021397
- Resource Relation:
- Conference: ASME winter annual meeting, New York, NY, USA, 2 Dec 1979
- Country of Publication:
- United States
- Language:
- English
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