Dynamic mode structure analysis of the near-wake region of a Savonius-type hydrokinetic turbine
被引:6
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作者:
Wu, Yanzhao
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机构:
China Agr Univ, Coll Water Resources & Civil Engn, Beijing, Peoples R China
China Agr Univ, Beijing Engn Res Ctr Safety & Energy Saving Techno, Beijing, Peoples R ChinaChina Agr Univ, Coll Water Resources & Civil Engn, Beijing, Peoples R China
Wu, Yanzhao
[1
,2
]
Guang, Weilong
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机构:
China Agr Univ, Coll Water Resources & Civil Engn, Beijing, Peoples R China
China Agr Univ, Beijing Engn Res Ctr Safety & Energy Saving Techno, Beijing, Peoples R ChinaChina Agr Univ, Coll Water Resources & Civil Engn, Beijing, Peoples R China
Guang, Weilong
[1
,2
]
Tao, Ran
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机构:
China Agr Univ, Coll Water Resources & Civil Engn, Beijing, Peoples R China
China Agr Univ, Beijing Engn Res Ctr Safety & Energy Saving Techno, Beijing, Peoples R ChinaChina Agr Univ, Coll Water Resources & Civil Engn, Beijing, Peoples R China
Tao, Ran
[1
,2
]
Liu, Jie
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机构:
China Three Gorges Construct Engn Corp, Beijing, Peoples R ChinaChina Agr Univ, Coll Water Resources & Civil Engn, Beijing, Peoples R China
Liu, Jie
[3
]
Xiao, Ruofu
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China Agr Univ, Coll Water Resources & Civil Engn, Beijing, Peoples R China
China Agr Univ, Beijing Engn Res Ctr Safety & Energy Saving Techno, Beijing, Peoples R ChinaChina Agr Univ, Coll Water Resources & Civil Engn, Beijing, Peoples R China
Xiao, Ruofu
[1
,2
]
机构:
[1] China Agr Univ, Coll Water Resources & Civil Engn, Beijing, Peoples R China
[2] China Agr Univ, Beijing Engn Res Ctr Safety & Energy Saving Techno, Beijing, Peoples R China
[3] China Three Gorges Construct Engn Corp, Beijing, Peoples R China
Hydrokinetic turbine is a clean technology that can effectively use tidal energy, the Savonius-type runner is very suitable for natural flows, and has been widely used in tidal energy power stations. The dynamic structure of the flow field in the near-wake region downstream has strong impact on the dense layout of the turbine, but there has been no in-depth exploration till now. To explore the potential for beneficial interactions between turbines, this study conducted numerical simulations of Savonius-type turbine, combining fast Fourier transformation and Dynamic mode decomposition to conduct in-depth analysis of the velocity fluctuation frequency distribution and dynamic mode in near-wake region, and compared the advantages and disadvantages of the two methods. This research obtained the distribution of two main frequencies in the near-wake region and clarified their excitation sources. The frequencies of turbines are mixed in the far field, greatly affects the far-field flow state in the near-wake region. The DMD method has great advantages in flow field analysis, as it does not require prior knowledge of flow field compared to FFT method. The conclusions of this study provide new considerations for large-scale arrangement of turbine units, and provide a new method for the flow state analysis.
机构:
Univ Tenaga Nas, Inst Energy Infrastruct, Jalan IKRAM UNITEN, Kajang 43000, Selangor, MalaysiaUniv Tenaga Nas, Inst Energy Infrastruct, Jalan IKRAM UNITEN, Kajang 43000, Selangor, Malaysia
Yazik, Muhamad Hasfanizam Mat
Zawawi, Mohd Hafiz
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Univ Tenaga Nas, Inst Energy Infrastruct, Jalan IKRAM UNITEN, Kajang 43000, Selangor, Malaysia
Univ Tenaga Nas, Civil Engn Dept, Jalan IKRAM UNITEN, Kajang 43000, Selangor, MalaysiaUniv Tenaga Nas, Inst Energy Infrastruct, Jalan IKRAM UNITEN, Kajang 43000, Selangor, Malaysia
Zawawi, Mohd Hafiz
Ahmed, Ali Najah
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机构:
Univ Tenaga Nas, Inst Energy Infrastruct, Jalan IKRAM UNITEN, Kajang 43000, Selangor, Malaysia
Univ Tenaga Nas, Civil Engn Dept, Jalan IKRAM UNITEN, Kajang 43000, Selangor, MalaysiaUniv Tenaga Nas, Inst Energy Infrastruct, Jalan IKRAM UNITEN, Kajang 43000, Selangor, Malaysia
Ahmed, Ali Najah
Sidek, Lariyah Mohd
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机构:
Univ Tenaga Nas, Inst Energy Infrastruct, Dam Safety Management & Engn Grp, Jalan IKRAM UNITEN, Kajang 43000, Selangor, MalaysiaUniv Tenaga Nas, Inst Energy Infrastruct, Jalan IKRAM UNITEN, Kajang 43000, Selangor, Malaysia
Sidek, Lariyah Mohd
Basri, Hidayah
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Univ Tenaga Nas, Inst Energy Infrastruct, Dam Safety Management & Engn Grp, Jalan IKRAM UNITEN, Kajang 43000, Selangor, MalaysiaUniv Tenaga Nas, Inst Energy Infrastruct, Jalan IKRAM UNITEN, Kajang 43000, Selangor, Malaysia
Basri, Hidayah
Ismail, Farzad
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机构:
Univ Sains Malaysia, Sch Aerosp Engn, George Town 14300, Pulau Pinang, MalaysiaUniv Tenaga Nas, Inst Energy Infrastruct, Jalan IKRAM UNITEN, Kajang 43000, Selangor, Malaysia
机构:
College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
Xinjiang Institute of Engineering, Urumqi 830091, ChinaCollege of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
Dai, Yuanjun
Wang, Jianwen
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机构:
College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
Wind Energy and Solar Energy Utilization Technology Key Laboratory of Ministry of Education, Hohhot 010051, ChinaCollege of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
Wang, Jianwen
Wu, Weimin
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机构:
College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaCollege of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
Wu, Weimin
Zhang, Liru
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机构:
College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
Wind Energy and Solar Energy Utilization Technology Key Laboratory of Ministry of Education, Hohhot 010051, ChinaCollege of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
Zhang, Liru
Zhao, Hongyu
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机构:
College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaCollege of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
机构:
Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Peoples R China
Dalian Univ Technol, Inst Earthquake Engn, Fac Infrastruct Engn, Dalian, Peoples R ChinaDalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Peoples R China
Liu, Yingzhou
Shi, Wei
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机构:
Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Peoples R China
Dalian Univ Technol, Deepwater Engn Res Ctr, Dalian, Peoples R ChinaDalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Peoples R China
Shi, Wei
Wang, Wenhua
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机构:
Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Peoples R China
Dalian Univ Technol, Inst Earthquake Engn, Fac Infrastruct Engn, Dalian, Peoples R ChinaDalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Peoples R China
Wang, Wenhua
Li, Xin
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机构:
Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Peoples R China
Dalian Univ Technol, Inst Earthquake Engn, Fac Infrastruct Engn, Dalian, Peoples R ChinaDalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Peoples R China
Li, Xin
Qi, Shengwenjun
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机构:
Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Peoples R China
Dalian Univ Technol, Inst Earthquake Engn, Fac Infrastruct Engn, Dalian, Peoples R ChinaDalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Peoples R China
Qi, Shengwenjun
Wang, Bin
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机构:
PowerChina Huadong Engn Corp Ltd, Renewable Energy Engn Inst, Hangzhou, Peoples R ChinaDalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Peoples R China