Numerical simulation of tidal current around Keelung sill off Northern Taiwan

Hsien Wen Li, Yao Tsai Lo, Cheng Han Tsai, Nan Jung Kuo, Chung Ru Ho, Dong-Jiing Doong, Shih Jen Huang, Hung Jen Lee, Young Zehr Kehr

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Tidal power is a renewable energy source and considered as one of energy solutions in the context of global warming. The Keelung Sill is a seamount-like formation with depths in the range of 10-40m on a 60m deep sea floor. It is located between the Keelung Island and the Keelung Harbor on the north coast of Taiwan. Due to its shallowness, currents measured at the Sill are often above 1.5 m/s and can be as high as 2.5 m/s. Since Keelung Sill is only about 3 km off the Keelung Harbor, it can be an ideal site for tidal power generation. In this study we have established a two-dimensional numerical model to simulate tidal currents around the Keelung Sill. The numerical model to be used is based on the hydrodynamic equations and constructed by the finite difference method. The model was mainly driven by tides from open boundaries, in which the tides are obtained from a global tidal model of Japan's National Astronomical Observatory (NAO). The model result indicated that the strongest current in a 24-hr cycle is about 1.0 m/s, which is lower than observed. It may be due to the lunar phase of simulation day different from the measurement time.

Original languageEnglish
Title of host publicationOCEANS'10 IEEE Sydney, OCEANSSYD 2010
DOIs
Publication statusPublished - 2010
EventOCEANS'10 IEEE Sydney, OCEANSSYD 2010 - Sydney, NSW, Australia
Duration: 2010 May 242010 May 27

Other

OtherOCEANS'10 IEEE Sydney, OCEANSSYD 2010
CountryAustralia
CitySydney, NSW
Period10-05-2410-05-27

Fingerprint

Tidal power
Tides
Ports and harbors
Numerical models
Computer simulation
Global warming
Observatories
Time measurement
Finite difference method
Power generation
Coastal zones
Hydrodynamics

All Science Journal Classification (ASJC) codes

  • Ocean Engineering

Cite this

Li, H. W., Lo, Y. T., Tsai, C. H., Kuo, N. J., Ho, C. R., Doong, D-J., ... Kehr, Y. Z. (2010). Numerical simulation of tidal current around Keelung sill off Northern Taiwan. In OCEANS'10 IEEE Sydney, OCEANSSYD 2010 [5603822] https://doi.org/10.1109/OCEANSSYD.2010.5603822
Li, Hsien Wen ; Lo, Yao Tsai ; Tsai, Cheng Han ; Kuo, Nan Jung ; Ho, Chung Ru ; Doong, Dong-Jiing ; Huang, Shih Jen ; Lee, Hung Jen ; Kehr, Young Zehr. / Numerical simulation of tidal current around Keelung sill off Northern Taiwan. OCEANS'10 IEEE Sydney, OCEANSSYD 2010. 2010.
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abstract = "Tidal power is a renewable energy source and considered as one of energy solutions in the context of global warming. The Keelung Sill is a seamount-like formation with depths in the range of 10-40m on a 60m deep sea floor. It is located between the Keelung Island and the Keelung Harbor on the north coast of Taiwan. Due to its shallowness, currents measured at the Sill are often above 1.5 m/s and can be as high as 2.5 m/s. Since Keelung Sill is only about 3 km off the Keelung Harbor, it can be an ideal site for tidal power generation. In this study we have established a two-dimensional numerical model to simulate tidal currents around the Keelung Sill. The numerical model to be used is based on the hydrodynamic equations and constructed by the finite difference method. The model was mainly driven by tides from open boundaries, in which the tides are obtained from a global tidal model of Japan's National Astronomical Observatory (NAO). The model result indicated that the strongest current in a 24-hr cycle is about 1.0 m/s, which is lower than observed. It may be due to the lunar phase of simulation day different from the measurement time.",
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Li, HW, Lo, YT, Tsai, CH, Kuo, NJ, Ho, CR, Doong, D-J, Huang, SJ, Lee, HJ & Kehr, YZ 2010, Numerical simulation of tidal current around Keelung sill off Northern Taiwan. in OCEANS'10 IEEE Sydney, OCEANSSYD 2010., 5603822, OCEANS'10 IEEE Sydney, OCEANSSYD 2010, Sydney, NSW, Australia, 10-05-24. https://doi.org/10.1109/OCEANSSYD.2010.5603822

Numerical simulation of tidal current around Keelung sill off Northern Taiwan. / Li, Hsien Wen; Lo, Yao Tsai; Tsai, Cheng Han; Kuo, Nan Jung; Ho, Chung Ru; Doong, Dong-Jiing; Huang, Shih Jen; Lee, Hung Jen; Kehr, Young Zehr.

OCEANS'10 IEEE Sydney, OCEANSSYD 2010. 2010. 5603822.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AU - Li, Hsien Wen

AU - Lo, Yao Tsai

AU - Tsai, Cheng Han

AU - Kuo, Nan Jung

AU - Ho, Chung Ru

AU - Doong, Dong-Jiing

AU - Huang, Shih Jen

AU - Lee, Hung Jen

AU - Kehr, Young Zehr

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N2 - Tidal power is a renewable energy source and considered as one of energy solutions in the context of global warming. The Keelung Sill is a seamount-like formation with depths in the range of 10-40m on a 60m deep sea floor. It is located between the Keelung Island and the Keelung Harbor on the north coast of Taiwan. Due to its shallowness, currents measured at the Sill are often above 1.5 m/s and can be as high as 2.5 m/s. Since Keelung Sill is only about 3 km off the Keelung Harbor, it can be an ideal site for tidal power generation. In this study we have established a two-dimensional numerical model to simulate tidal currents around the Keelung Sill. The numerical model to be used is based on the hydrodynamic equations and constructed by the finite difference method. The model was mainly driven by tides from open boundaries, in which the tides are obtained from a global tidal model of Japan's National Astronomical Observatory (NAO). The model result indicated that the strongest current in a 24-hr cycle is about 1.0 m/s, which is lower than observed. It may be due to the lunar phase of simulation day different from the measurement time.

AB - Tidal power is a renewable energy source and considered as one of energy solutions in the context of global warming. The Keelung Sill is a seamount-like formation with depths in the range of 10-40m on a 60m deep sea floor. It is located between the Keelung Island and the Keelung Harbor on the north coast of Taiwan. Due to its shallowness, currents measured at the Sill are often above 1.5 m/s and can be as high as 2.5 m/s. Since Keelung Sill is only about 3 km off the Keelung Harbor, it can be an ideal site for tidal power generation. In this study we have established a two-dimensional numerical model to simulate tidal currents around the Keelung Sill. The numerical model to be used is based on the hydrodynamic equations and constructed by the finite difference method. The model was mainly driven by tides from open boundaries, in which the tides are obtained from a global tidal model of Japan's National Astronomical Observatory (NAO). The model result indicated that the strongest current in a 24-hr cycle is about 1.0 m/s, which is lower than observed. It may be due to the lunar phase of simulation day different from the measurement time.

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SN - 9781424452217

BT - OCEANS'10 IEEE Sydney, OCEANSSYD 2010

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Li HW, Lo YT, Tsai CH, Kuo NJ, Ho CR, Doong D-J et al. Numerical simulation of tidal current around Keelung sill off Northern Taiwan. In OCEANS'10 IEEE Sydney, OCEANSSYD 2010. 2010. 5603822 https://doi.org/10.1109/OCEANSSYD.2010.5603822