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Hydrodynamics of a Free Floating Vertical Axisymmetric Oscillating Water Column Device

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  • S. A. Mavrakos
  • D. N. Konispoliatis

Abstract

This paper aims at presenting a general formulation of the hydrodynamic problem of a floating or restrained oscillating water column device. Three types of first-order boundary value problems are investigated in order to calculate the velocity potential of the flow field around the device. The horizontal and vertical exciting wave forces, the rolling moment, the hydrodynamic parameters, the volume flows, and the drift forces are obtained in order to find the loads on the structure. The efficiency rate of the device is calculated in connection with the absorbed power and the capture length of energy absorption. Finally, the resulting wave motion inside and outside the device and the inner air pressure are examined.

Suggested Citation

  • S. A. Mavrakos & D. N. Konispoliatis, 2012. "Hydrodynamics of a Free Floating Vertical Axisymmetric Oscillating Water Column Device," Journal of Applied Mathematics, Hindawi, vol. 2012, pages 1-27, November.
    • Handle: RePEc:hin:jnljam:142850
    DOI: 10.1155/2012/142850
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    Cited by:

    1. Zheng, Siming & Zhang, Yongliang & Iglesias, Gregorio, 2020. "Concept and performance of a novel wave energy converter: Variable Aperture Point-Absorber (VAPA)," Renewable Energy, Elsevier, vol. 153(C), pages 681-700.
    2. Ning, De-zhi & Zhou, Yu & Mayon, Robert & Johanning, Lars, 2020. "Experimental investigation on the hydrodynamic performance of a cylindrical dual-chamber Oscillating Water Column device," Applied Energy, Elsevier, vol. 260(C).
    3. Dimitrios N. Konispoliatis, 2023. "The Effect of Hydrodynamics on the Power Efficiency of a Toroidal Oscillating Water Column Device," Sustainability, MDPI, vol. 15(16), pages 1-29, August.

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