A 1:7.8 scale hydraulic model was used to determine flow patterns, velocity distributions, and turbulence intensities within the inlet/outlet waterbox and reversing waterbox of a two-pass condenser for a nuclear generating station currently under construction. A laser doppler anemometer with an acousto-optical frequency shifter was used to measure the velocity components perpendicular to the tubesheets and the turbulence intensities associated with these components. Test results were discussed in terms of their implications for tubesheet and condenser tube erosion.

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