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Examination of the vessel's shape, resistive force and volumetric-aqueous efficiencies to optimize the vessels' foil
Zhiheng Xu1, Yan Shi2,3, Shelesh Krishna Saraswat4
1Yangzhou Polytechnic Institute, Yangzhou, 225000, Jangsu, China.
View abstract on PubMed
Optimizing undersurface vessel hull design significantly reduces hydro-acoustic noise. This study demonstrates that improved hydrodynamic forms enhance noise reduction and turbulence damping potential.
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Area of Science:
- Naval Architecture
- Hydrodynamics
- Acoustics
Background:
- Hull strength is critical in undersurface vessel design, with 70% attributed to the hull itself.
- Vessel hulls comprise nose, cylinder, and heel sections; advanced designs often feature a cylindrical shape.
- The cylindrical section is vital for accommodating vessel equipment and pilot space.
Purpose of the Study:
- To investigate the impact of hull form on undersurface vessel performance.
- To optimize hull profiles for reduced resistive force and enhanced volumetric-aqueous efficiency.
- To analyze the relationship between hull design and hydro-acoustic noise generation.
Main Methods:
- Computational Fluid Dynamics (CFD) was employed to analyze vessel shapes.
- Resistive force and volumetric-aqueous efficiencies were extracted for various hull profiles.
Main Results:
- Hull form significantly influences hydro-acoustic noise levels.
- Optimized hydrodynamic hull designs effectively reduce noise propagation.
- The optimized hull exhibits enhanced turbulence damping potential compared to conventional designs.
Conclusions:
- Hull shape optimization is a key factor in minimizing underwater vessel noise.
- Improved hydrodynamic efficiency correlates with reduced acoustic signatures.
- The study provides a pathway for designing quieter and more efficient undersurface vessels.
