Macroscopic Hydrodynamic Drag Reduction via Active Phononic Micro-Cavitation in Piezoelectric Metamaterial Hull Coatings
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| Natura: | Recurso digital |
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Zenodo
2026
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| _version_ | 1866901070929723392 |
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| author | John Drayton |
| author_facet | John Drayton |
| contents | <p>This paper presents a highly scalable, active metamaterial hull coating designed to optimize boundary layer fluid dynamics in commercial maritime logistics. By embedding asymmetrical piezoelectric nodes within a durable fluoropolymer-infused polyurethane-urea elastomer matrix, the hull emits a synchronized, marine-mammal safe phononic resonance (800 kHz to 1 MHz). This high-frequency acoustic field artificially lowers the local vapor pressure of the adjacent fluid, generating a partial micro-cavitation layer across the wetted surface area. Empirical models demonstrate a stable cavitation effect at standard commercial cruising speeds, resulting in up to a 50% reduction in hydrodynamic skin friction. This architecture provides a transformative increase in transit efficiency, complete acoustic bio-fouling deterrence without toxic biocides, and a sub-6-month capital return cycle for global maritime fleets.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_18827473 |
| institution | Zenodo |
| language | |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Macroscopic Hydrodynamic Drag Reduction via Active Phononic Micro-Cavitation in Piezoelectric Metamaterial Hull Coatings John Drayton Hydrodynamic Drag Reduction Phononic Micro-Cavitation Piezoelectric Metamaterials Marine Bio-Fouling Prevention Fluoropolymer Elastomers Non-Toxic Marine Coatings Acoustic Boundary Layer Decoupling Commercial Maritime Efficiency Cetacean-Safe Acoustics Polyurethane-Urea Matrix <p>This paper presents a highly scalable, active metamaterial hull coating designed to optimize boundary layer fluid dynamics in commercial maritime logistics. By embedding asymmetrical piezoelectric nodes within a durable fluoropolymer-infused polyurethane-urea elastomer matrix, the hull emits a synchronized, marine-mammal safe phononic resonance (800 kHz to 1 MHz). This high-frequency acoustic field artificially lowers the local vapor pressure of the adjacent fluid, generating a partial micro-cavitation layer across the wetted surface area. Empirical models demonstrate a stable cavitation effect at standard commercial cruising speeds, resulting in up to a 50% reduction in hydrodynamic skin friction. This architecture provides a transformative increase in transit efficiency, complete acoustic bio-fouling deterrence without toxic biocides, and a sub-6-month capital return cycle for global maritime fleets.</p> |
| title | Macroscopic Hydrodynamic Drag Reduction via Active Phononic Micro-Cavitation in Piezoelectric Metamaterial Hull Coatings |
| topic | Hydrodynamic Drag Reduction Phononic Micro-Cavitation Piezoelectric Metamaterials Marine Bio-Fouling Prevention Fluoropolymer Elastomers Non-Toxic Marine Coatings Acoustic Boundary Layer Decoupling Commercial Maritime Efficiency Cetacean-Safe Acoustics Polyurethane-Urea Matrix |
| url | https://doi.org/10.5281/zenodo.18827473 |