九州大学 研究者情報
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基本情報 研究活動 教育活動 社会活動
劉 盈溢(りゆう いんい) データ更新日:2022.06.20



主な研究テーマ
後流の影響を考慮した風車の解析モデリング、ウィンドファーム最適配置に関する研究
キーワード:後流解析、ウィンドファーム
2019.04~2022.06.
海洋波エネルギー装置の数値モデリング
キーワード:海洋波エネルギー、複数装置、数値モデリング
2018.04~2022.06.
浮体式洋上風車の動解析、タワーの空力特性が洋上風車性能に及ぼす影響の調査
キーワード:浮体式、タワー、空力特性
2017.07~2022.06.
海洋構造物との水波の相互作用に関する研究、海洋流体力学における高効率計算コードの開発
キーワード:海洋流体力学、海洋工学
2009.09~2022.06.
従事しているプロジェクト研究
A practical approximation method for free-surface Green's function in finite water depth with an extreme fast computational speed
2019.04~2019.12, 代表者:Francis Noblesse,劉 盈溢, Shanghai Jiao Tong University,九州大学応用力学研究所
This research aims to develop a practical efficient method for evaluation of finite-depth free-surface Green's function with a sufficient degree of accuracy..
波と風条件における細長トラス構造浮体式洋上風車の弾性変形に関する研究
2018.07~2020.06, 代表者:劉 盈溢, 九州大学応用力学研究所
This research aims to develop a systematic modeling method for a special type of semi-submersible floating wind turbine, composed by slender trussed bracings..
Performance evaluation of multiple-rotor floating wind turbine systems of semi-submersible type under the effect of partial wake from upstream rotors
2018.10~2019.03, 代表者:劉 盈溢, 九州大学応用力学研究所
A numerical model has been developed to analyze the dynamic behavior of a floating multiple wind turbine system in the presence of both waves and winds, using which the partial wake effect on the downstream turbine has been studied..
浮体式洋上風車の非線形不規則波における流力応答と構造応答特性
2018.04~2020.02, 代表者:劉 盈溢, 九州大学応用力学研究所
This project aims to foster young Japanese students in studying hydrodynamics, aerodynamics and hydroelasticity of a floating wind turbine in harsh sea conditions, with international cooperations..
Development of a next-generation IGA-BEM based on T-splines to investigate the performance of complex-shaped wave energy devices undergoing strong mutual interactions in large arrays
2018.04~2022.03, 代表者:劉 盈溢, 九州大学応用力学研究所
This research aims to establish a sophisticated isogeometric boundary element method (IGA-BEM) based on the latest novel T-spline technology. Multiple-scattering theory and modern computation algorithms & techniques will be employed to speed up the computation efficiency. The strong mutual interaction physics between complex-shaped wave energy devices in large arrays will be investigated thoroughly, accompanied by validations from the laboratory physical test..
研究業績
主要原著論文
1. Yingyi Liu, Hui Liang, Masashi Kashiwagi, Peiwen Cong, Alternative approaches of evaluating diffraction transfer matrix and radiation characteristics using the hybrid source-dipole formulation, Applied Ocean Research, 10.1016/j.apor.2021.102769, 114, 102769, 2021.09, [URL].
2. Yingyi Liu, Changhong Hu, Makoto Sueyoshi, Shigeo Yoshida, Hidetsugu Iwashita, Masashi Kashiwagi, Motion Response Characteristics of a Kyushu-University Semi-Submersible Floating Wind Turbine with Trussed Slender Structures: Experiment vs. Numerical Simulation, Ocean Engineering, 10.1016/j.oceaneng.2021.109078, 232, 109078, 2021.07, [URL].
3. Yingyi Liu, Boyin Ding, Binzhen Zhou, Peiwen Cong, Siming Zheng, Editorial: Advances and Challenges in Ocean Wave Energy Harvesting, Frontiers in Energy Research, 10.3389/fenrg.2020.614904, 8, 614904, 2020.12, [URL].
4. Yingyi Liu, Peiwen Cong, Ying Gou, Shigeo Yoshida, Masashi Kashiwagi, Enhanced Endo's approach for evaluating free-surface Green's function with application to wave-structure interactions, Ocean Engineering, 10.1016/j.oceaneng.2020.107377, 207, 107377, 2020.07, [URL].
5. Yingyi Liu, HAMS: A frequency-domain preprocessor for wave-structure interactions-Theory, development, and application, Journal of Marine Science and Engineering, 10.3390/jmse7030081, 7, 81, 1-19, 2019.03, [URL].
6. Yingyi Liu, Shigeo Yoshida, Hiroshi Yamamoto, Akinori Toyofuku, Guanghua He, Shunhan Yang, Response characteristics of the DeepCwind floating wind turbine moored by a Single-Point Mooring system, Applied Sciences (Switzerland), 10.3390/app8112306, 8, 11, 1-20, 2018.11, [URL].
7. Yingyi Liu, Shigeo Yoshida, Changhong Hu, Makoto Sueyoshi, Liang Sun, Junliang Gao, Peiwen Cong, Guanghua He, A reliable open-source package for performance evaluation of floating renewable energy systems in coastal and offshore regions, Energy Conversion and Management, 10.1016/j.enconman.2018.08.012, 174, 516-536, 2018.10, [URL].
8. Yingyi Liu, Shigeo Yoshida, An extension of the generalized actuator disc theory for aerodynamic analysis of the diffuser-augmented wind turbines, Energy, 10.1016/j.energy.2015.09.114, 93, 2, 1852-1859, 2015.12, [URL].
9. Yingyi Liu, Changhong Hu, Sueyoshi Makoto, Hidetsugu Iwashita, Masashi Kashiwagi, Motion response prediction by hybrid panel-stick models for a semi-submersible with bracings, Journal of Marine Science and Technology, 10.1007/s00773-016-0390-1, 21, 4, 742-757, 2016.12, [URL].
10. Yingyi Liu, Hidetsugu Iwashita, Changhong Hu, A calculation method for finite depth free-surface green function, International Journal of Naval Architecture and Ocean Engineering, 10.1515/ijnaoe-2015-0026, 7, 2, 375-389, 2015.03, [URL].
11. Yingyi Liu, Bin Teng, Peiwen Cong, Changfeng Liu, Ying Gou, Analytical study of wave diffraction and radiation by a submerged sphere in infinite water depth, Ocean Engineering, 10.1016/j.oceaneng.2012.05.004, 51, 129-141, 2012.07, [URL].
12. Yingyi Liu, Ying Gou, Bin Teng, Shigeo Yoshida, An Extremely Efficient Boundary Element Method for Wave Interaction with Long Cylindrical Structures Based on Free-Surface Green’s Function, Computation, 10.3390/computation4030036, 4, 3, 1-20, 2016.09, [URL].
主要学会発表等
1. Yingyi Liu, Siming Zheng, Hui Liang, Peiwen Cong, Wave energy absorption amongst arrays of point absorbers with a non-regular geometry, Proc. of the 37th International Workshop on Water Waves and Floating Bodies (IWWWFB37), 2022.04, [URL].
2. Yingyi Liu, Introduction of the Open-Source Boundary Element Method Solver HAMS to the Ocean Renewable Energy Community, Proc. of the 14th European Wave and Tidal Energy Conference (EWTEC2021), 2021.09.
3. Yingyi Liu, Hui Liang, Masashi Kashiwagi, Peiwen Cong, Computational accuracy and efficiency for Diffraction Transfer Matrix using hybrid source-dipole formulations, Proc. of the 36th International Workshop on Water Waves and Floating Bodies (IWWWFB36), 2021.04, [URL].
4. Yingyi Liu, Changhong Hu, Shigeo Yoshida, Time-Domain Response of a Semi-Submersible Floating Wind Turbine with Trussed Slender Structures, Proc. of the 14th ISOPE Pacific-Asia Offshore Mechanics Symposium (PACOMS 2020), 2020.11, [URL].
5. Yingyi Liu, Shigeo Yoshida, Hiroshi Yamamoto, Akinori Toyofuku, Changhong Hu, Makoto Sueyoshi, Hongzhong Zhu, Release of a reliable open-source package for performance evaluation of ocean renewable energy devices, 4th Asian Wave and Tidal Energy Conference (AWTEC 2018), 2018.09, Marine renewable energy (MRE) devices, such as offshore wind turbines, wave energy converters and tidal energy converters, are usually in the form of floating types and anchored by mooring systems. To analyze the feasibility of these floating systems in an efficient manner with respect to a wide band of frequency, frequency domain methods are good options to choose. In the present work, we developed an efficient software package for evaluating the performance of floating renewable energy systems in the coastal and offshore regions. It aims to contribute an open-source effort to numerical simulations for ocean energy converters. The interface and structure of the software package are introduced in detail so as to let it be well understood by the readers. Computations of a benchmark geometry and two practical applications of floating wind turbine are conducted and compared with theoretical results, experimental data and results from commercial software Hydrostar, justifying the effectiveness of the developed software package..
6. Yingyi Liu, Yoshida Shigeo, Development of an open-source package for computing free-surface Green’s function in constant-depth ocean Topography: FinGreen3D, International Symposium on Ocean Science and Technology, 2017.11.
7. Yingyi Liu, Changhong Hu, Sueyoshi Makoto, Hidetsugu Iwashita, Hydrodynamic analysis of a semi-submersible FOWT by hybrid panel-stick models, 25th International Ocean and Polar Engineering Conference, ISOPE 2015, 2015.06, [URL].
8. Yingyi Liu, Changhong Hu, Sueyoshi Makoto, Shigeo Yoshida, Yuichiro Honda, Yuji Ohya, Time domain simulation of a semi-submersible type floating wind turbine, 24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan, 2014.06, [URL].
作品・ソフトウェア・データベース等
1. Yingyi Liu, HAMS, 2020.10, [URL], HAMS (abbr. for Hydrodynamic Analysis of Marine Structures) is the World's 2nd open-source BEM code (released after Nemoh by Centrale Nantes, France, 2014) in offshore hydrodynamics. It is based on boundary integral equations of the potential flow theory and implemented in the frequency domain for analysing the wave-structure interaction phenomenon. HAMS is released in the hope that it will contribute to eliminating the inequality (for those who are not able to afford to purchase a costly commercial BEM software) in the continuous research developments related to offshore engineering and ocean renewable energies. HAMS is freely distributed under the Apache License and updated on GitHub..
2. Yingyi Liu, FINGREEN3D, 2018.07, [URL], FINGREEN3D is an open-source package for computation of the free-surface Green's function under a finite water depth, which is the core-part of the boundary integral equations in the potential flow theory for analysis of wave-structure interactions. It is currently written in FORTRAN 90. FINGREEN3D is developed in the hope that it can contribute to the continuous development of offshore floating renewable energy systems as well as other ocean/marine engineering applications, regardless of academic or industrial purpose..
学会活動
所属学会名
IEEE Power & Energy Society (IEEE-PE)
IEEE Oceanic Engineering Society (IEEE-OE)
Institute of Electrical and Electronics Engineers (IEEE)
International Society of Offshore and Polar Engineers (ISOPE)
日本船舶海洋工学会 (JASNAOE)
International Network on Offshore Renewable Energy (INORE)
学協会役員等への就任
2020.07~2022.06, International Society of Offshore and Polar Engineers, 運営委員.
学会大会・会議・シンポジウム等における役割
2021.06.20~2021.06.25, 31st International Ocean and Polar Engineering Conference, Session Organizer.
2020.01.19~2020.01.21, International Symposium on Novel Computational and Experimental Methods for Complicated Fluid Structure Interactions, Session Chair.
2019.10.31~2019.11.01, International Symposium on Ocean Science and Technology, Session Chair.
学会誌・雑誌・著書の編集への参加状況
2021.10~2022.06, Wind, 国際, Guest Associate Editor.
2021.08~2023.07, Journal of Marine Science and Engineering , 国際, Topic Editor Board Member.
2021.10~2023.09, Wind, 国際, 編集委員.
2020.12~2021.11, Journal of Marine Science and Engineering , 国際, Guest Associate Editor.
2020.06~2021.02, Frontiers in Energy Research, 国際, Guest Associate Editor.
2019.07~2022.07, Heliyon, 国際, Editorial Advisory Board Member.
2019.06~2019.12, Frontiers in Energy Research, 国際, Guest Associate Editor.
2019.02~2019.06, Heliyon, 国際, 編集委員.
学術論文等の審査
年度 外国語雑誌査読論文数 日本語雑誌査読論文数 国際会議録査読論文数 国内会議録査読論文数 合計
2022年度
2021年度 15  17 
2020年度 31  33 
2019年度 30  30 
2018年度 27  28 
2017年度
2016年度
その他の研究活動
海外渡航状況, 海外での教育研究歴
Pusan National University, Korea, 2019.10~2019.11.
Shanghai Jiao Tong University, China, 2019.04~2019.04.
University of Oxford, UnitedKingdom, 2019.03~2019.03.
Southern University of Science and Technology, China, 2019.01~2019.01.
Instituto Superior Técnico, Portugal, 2018.10~2018.10.
National Taiwan Ocean University, Taiwan, 2018.09~2018.09.
Dalian University of Technology, China, 2018.09~2018.09.
Shanghai Jiao Tong University, China, 2018.06~2018.06.
Harbin Institute of Technology (Weihai), China, 2017.11~2017.12.
外国人研究者等の受入れ状況
2020.12~2020.01, 2週間未満, University of Oxford, UnitedKingdom, 学内資金.
2018.11~2018.11, 2週間未満, CNOOC Research Institute Co., Ltd, China, .
受賞
優秀論文賞(神戸市長賞), 在日中国同窓会 & 神戸市, 2022.03.
Best Paper Award, The 4th Asian Wave and Tidal Energy Conference (AWTEC 2018), 2018.09.
2018 Peer Review Awards (Top 1% Reviewers for Engineering), Publons, 2018.09.
研究資金
科学研究費補助金の採択状況(文部科学省、日本学術振興会)
2022年度~2024年度, 若手研究, 代表, Elucidation of the hydro-dynamics in newly-arised innovative floating systems toward highly-efficient ocean renewable energy conversion.
2018年度~2021年度, 若手研究, 代表, Development of a next-generation IGA-BEM based on T-splines to investigate the performance of complex-shaped wave energy devices undergoing strong mutual interactions in large arrays.
競争的資金(受託研究を含む)の採択状況
2018年度~2023年度, NEDO, 分担, 風力発電等技術研究開発/洋上風力発電等技術研究開発/次世代浮体式洋上風力発電システム実証研究(要素技術実証).
2018年度~2020年度, 公益社団法人 日本船舶海洋工学会 海外共同研究促進事業 共同研究補助金, 代表, 浮体式洋上風車の非線形不規則波における流体力学的応答と構造応答特性
Hydrodynamic and structural response characteristics of offshore floating wind turbines in nonlinear irregular waves.
2018年度~2020年度, Open Funding of Dalian University of Technology, 代表, 波と風条件における細長トラス構造浮体式洋上風車の弾性変形に関する研究
Elastic deformation of a floating wind turbine structure composed by slender members in the presence of waves and winds.
2017年度~2017年度, NEDO, 分担, 風力発電等技術研究開発/洋上風力発電等技術研究開発/洋上風力発電システム実証研究(低コスト施工技術調査研究).
2016年度~2017年度, NEDO, 分担, 風力発電等技術研究開発/洋上風力発電等技術研究開発/次世代浮体式洋上風力発電システム実証研究(要素技術開発).
共同研究、受託研究(競争的資金を除く)の受入状況
2016.03~2017.03, 分担, 洋上風力発電用アクセス装置の開発.
学内資金・基金等への採択状況
2021年度~2021年度, 応用力学研究所国際化推進共同研究, 分担, Predictions of the wave power absorption by a large Floating Oscillating Water Column (OWC) wave energy converter based on a Higher-order Boundary Element (HOBEM) method.
2020年度~2020年度, 応用力学研究所国際化推進共同研究, 分担, Predictions of Viscous Damping of Floating Structure Based on Computational Fluid Dynamics Method.
2019年度~2019年度, 応用力学研究所国際化推進共同研究, 分担, Coupled aerodynamic and floating platform dynamics.
2018年度~2018年度, 平成30年度エネルギー研究教育機構 若手研究者・博士課程学生支援プログラム, 代表, Performance evaluation of multiple-rotor floating wind turbine systems of semi-submersible type under the effect of partial wake from upstream rotors.

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