Turbulent flow through mixing spacer grids in rod bundles
Book
·
OSTI ID:438865
- Korea Atomic Energy Research Inst., Taejon (Korea, Republic of). Thermal Hydraulics Dept.
The effects of the mixing spacer grids in rod bundles on the turbulent structure were investigated experimentally. The detailed hydraulic characteristics in subchannels of the 5 x 5 rod bundles with mixing spacer grids were measured upstream and downstream of the spacer grid by using a one component LDV (Laser Doppler Velocimetry). Axial velocity and turbulent intensity, skewness factor, flatness factor and spectral energy were measured. Pressure drop measurements were also performed to evaluate the loss coefficient for the spacer grid and the friction factor for rod bundles. Implications regarding the turbulent thermal mixing due to mixing spacer grids were discussed.
- OSTI ID:
- 438865
- Report Number(s):
- CONF-950828--; ISBN 0-7918-1715-6
- Country of Publication:
- United States
- Language:
- English
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