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Design and Numerical Simulations of a Flow Induced Vibration Energy Converter for Underwater Mooring Platforms

Author

Listed:
  • Wenlong Tian

    (School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China)

  • Zhaoyong Mao

    (School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
    Key Laboratory for Unmanned Underwater Vehicle, Northwestern Polytechnical University, Xi’an 710072, China)

  • Fuliang Zhao

    (School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China)

Abstract

Limited battery energy restricts the duration of the underwater operation of underwater mooring platforms (UMPs). In this paper, a flow-induced vibration energy converter (FIVEC) is designed to produce power for the UMPs and extend their operational time. The FIVEC is equipped with a thin plate to capture the kinetic energy in the vortices shed from the surface of the UMP. A magnetic coupling (MC) is applied for the non-contacting transmission of the plate torque to the generators so that the friction loss can be minimized. In order to quantify and evaluate the performance of the FIVEC, two-dimensional computational fluid dynamics (CFD) simulations are performed. Simulations are based on the Reynolds Averaged Navier-Stokes (RANS) equations and the shear stress transport (SST) k-ω turbulent model is utilized. The CFD method is firstly validated using existing experimental data. Then the influences of plate length and system damping on the performance of the FIVEC are evaluated. The results show that the device has a maximum averaged power coefficient of 0.0520 (13.86 W) in the considered situations. The results also demonstrate the feasibility of this energy converter plan.

Suggested Citation

  • Wenlong Tian & Zhaoyong Mao & Fuliang Zhao, 2017. "Design and Numerical Simulations of a Flow Induced Vibration Energy Converter for Underwater Mooring Platforms," Energies, MDPI, vol. 10(9), pages 1-20, September.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:9:p:1427-:d:112194
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    References listed on IDEAS

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    Cited by:

    1. Vidya Chandran & Sekar M. & Sheeja Janardhanan & Varun Menon, 2018. "Numerical Study on the Influence of Mass and Stiffness Ratios on the Vortex Induced Motion of an Elastically Mounted Cylinder for Harnessing Power," Energies, MDPI, vol. 11(10), pages 1-23, September.
    2. Zhaoyong Mao & Fuliang Zhao, 2017. "Structure Optimization of a Vibration Suppression Device for Underwater Moored Platforms Using CFD and Neural Network," Complexity, Hindawi, vol. 2017, pages 1-21, December.
    3. Xuanlin Peng & Jianzhong Zhou & Chu Zhang & Ruhai Li & Yanhe Xu & Diyi Chen, 2017. "An Intelligent Optimization Method for Vortex-Induced Vibration Reducing and Performance Improving in a Large Francis Turbine," Energies, MDPI, vol. 10(11), pages 1-17, November.

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