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International Journal of Rotating Machinery
Volume 2018, Article ID 6069780, 12 pages
https://doi.org/10.1155/2018/6069780
Research Article

Optimized Blade Design of Counter-Rotating-Type Pump-Turbine Unit Operating in Pump and Turbine Modes

1Advanced Energy and Technology, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
2Thermal & Fluid System R&D Group, Korea Institute of Industrial Technology, 89 Yangdaegiro-gil, Ipjang-myeon, Seobuk-gu, Cheonan-si, Chungcheongnam-do 31056, Republic of Korea
3Institute of Ocean Energy, Saga University, 1-Honjo Machi, Saga-shi, Saga 840-8502, Japan

Correspondence should be addressed to Jin-Hyuk Kim; rk.er.hcetik@kuyhnij

Received 20 October 2017; Accepted 26 February 2018; Published 3 April 2018

Academic Editor: Jingyin Li

Copyright © 2018 Jin-Woo Kim et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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