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[Articles In Press]
Experimental and Theoretical Investigation of Trim Tab Effects on Hydrodynamic Resistance and Planning Performance of High-Speed Planning Vessels
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- Experimental towing tank tests were conducted on two 40-foot scaled beam-type planning vessel models equipped with adjustable trim tabs.
- Results show that optimal trim tab deployment significantly reduces hydrodynamic resistance and lowers the hump resistance region.
- Trim Tab configuration “B” enabled earlier planning transition, reduced bow impact, and lowered power demand compared to untrimmed and Tab A cases.
- Scaling effects, model construction tolerances, and ITTC-recommended procedures were carefully addressed to ensure fidelity with full-scale performance.
- Findings provide practical insights into improving propulsion efficiency, vessel stability, and structural safety in high-speed marine craft design.
