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Experimental and numerical investigation of free-surface hydrodynamic interference between tandem hydrofoils
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DOI：10.1016/j.oceaneng.2026.127414.png)
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Abstract
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• Combined CFD and towing-tank tests resolve tandem hydrofoil interference. • The most favourable submergence depth maximises the overall lift-to-drag ratio. • Aft foil lift follows a decrease-then-recovery trend with vertical spacing. • A favourable horizontal spacing zone yields a substantial aft foil lift gain. • Inflow angle change and strut shed vortices drive the interference mechanism.
Keywords:
Tandem hydrofoils
Hydrodynamic interference
CFD
Towing-tank experiment
Hydrofoil craft
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