Journal of Marine Science and Engineering (Apr 2024)

Design and Optimization of the Teardrop Buoy Driven by Ocean Thermal Energy

  • Danyao Zhao,
  • Shizhen Li,
  • Wenzhuo Shi,
  • Zhengtong Zhou,
  • Fen Guo

DOI
https://doi.org/10.3390/jmse12040661
Journal volume & issue
Vol. 12, no. 4
p. 661

Abstract

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With the inception of the Argo program, the global ocean observation network is undergoing continuous advancement, with profiling buoys emerging as pivotal components of this network, thus garnering increased attention in research. In efforts to enhance the efficiency of profiling buoys and curtail energy consumption, a teardrop-shaped buoy design is proposed in this study. Moreover, an optimization methodology leveraging neural networks and genetic algorithms has been devised to attain an optimal profile curve. This curve seeks to minimize drag and drag coefficient while maximizing drainage, thereby improving hydrodynamic performance. Simulation-based validation and analysis are conducted to assess the efficacy of the optimized buoy design. Results indicate that the drag of the teardrop-shaped buoy with a deflector decreased by 9.2% compared to pre-optimized configurations and by 22% compared to buoys lacking deflectors. The hydrodynamic profile devised in this study effectively enhances buoy performance, laying a solid foundation for ocean thermal energy generation and buoyancy regulation control. Additionally, the optimized scheme serves as a valuable blueprint for the design of ocean exploration devices.

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