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A Pilot Study on the Feasibility of Using Shock Waves for Hull Grooming

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Technical Report,01 Sep 2017,31 Aug 2018

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Virginia Polytechnic Institute and State University Blacksburg United States

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The objective of this one-year research project is to investigate the feasibility of using well-controlled shock waves to remove calcareous fouling organisms e.g., barnacles from surfaces painted with a silicone-based fouling release PR coating, without damaging the coating. We have developed a fluid-solid coupled simulation model and performed a series of exploratory simulations. We have also conducted a series of laboratory experiments using barnacle models i.e. pseudobarnacles. Both the simulations and the experiments have shown that a sequence of shock waves with peak pressure in the range of 5 to 45 MPa and duration of 1 to 5 ps can remove pseudobarnacles from silicone-based PR coatings, without damaging the coating. Our simulations also suggest that tuning the waveform and magnitude of the shock wave can improve the efficiency. This project has led to one research article published in the International Journal of Solids and Structures, and several conference presentations.

Subject Categories:

  • Fluid Mechanics
  • Marine Engineering
  • Numerical Mathematics

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