Particle image velocimetry measurement of complex flow structures in the diffuser and spherical casing of a reactor coolant pump

Yongchao Zhang; Minguan Yang; Dan Ni; Ning Zhang; Bo Gao

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자료유형: 학술저널

저자정보: Yongchao Zhang Minguan Yang Dan Ni Ning Zhang Bo Gao

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제50권 제3호

발행연도: 2018.1

수록면: 368 - 378 (11page)

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연구주제

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연구배경

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연구방법

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Understanding of turbulent flow in the reactor coolant pump (RCP) is a premise of the optimal design ofthe RCP. Flow structures in the RCP, in view of the specially devised spherical casing, are more complicatedthan those associated with conventional pumps. Hitherto, knowledge of the flow characteristics ofthe RCP has been far from sufficient. Research into the nonintrusive measurement of the internal flow ofthe RCP has rarely been reported. In the present study, flow measurement using particle imagevelocimetry is implemented to reveal flow features of the RCP model. Velocity and vorticity distributionsin the diffuser and spherical casing are obtained. The results illuminate the complexity of the flows in theRCP. Near the lower end of the discharge nozzle, three-dimensional swirling flows and flow separationare evident. In the diffuser, the imparity of the velocity profile with respect to different axial crosssections is verified, and the velocity increases gradually from the shroud to the hub. In the casing, velocitydistribution is nonuniform over the circumferential direction. Vortices shed consistently from thediffuser blade trailing edge. The experimental results lend sound support for the optimal design of theRCP and provide validation of relevant numerical algorithms.

참고문헌 (25)

참고문헌 신청

Y.J. Cho / 2014 / Advancement of Reactor Coolant Pump (RCP) Performance Verification Test in KAERI, Paper No. ICONE22-31075 / ASME

A. Poullikkas / 2003 / Effects of two-phase liquid-gas flow on the performance of nuclear reactor cooling pumps / Prog. Nuclear Energy 42:3~10

C. Knierim / 2005 / Design Process for an Advanced Reactor Coolant Pump for a 1400 MW Nuclear Power Plant, Paper No. FEDSM2005-77340 / ASME

K.Y. Choi / 2008 / Development of a pump performance model for an integral effect test facility / Nuclear Eng. Design 238:2614~2623

A.M.C. Chan / 1999 / Experimental study of twophase pump performance using a full size nuclear reactor pump / Nuclear Eng. Design 193:159~172

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