Analysis of Fin Stabilizer Effects on 100 GT Fishing Vessel Resistance Using Computational Fluid Dynamics
DOI:
https://doi.org/10.35718/ismatech.v4i2.8482320Keywords:
CFD, Fin Stabilizer , Fishing Vessel , Flow Pattern , ResistanceAbstract
Fishing vessels require good hydrodynamic efficiency to limit propulsion power and energy consumption. Adding a fin stabilizer can modify the flow pattern, pressure distribution, wetted area, and consequently the total resistance; however, studies specifically addressing its resistance effect on a 100 GT fishing vessel remain limited. This study compares the flow characteristics and ship resistance before and after fin-stabilizer installation using Computational Fluid Dynamics (CFD). The hull geometry was developed from a 25 GT fishing-vessel dataset through a scaling approach, producing a working model with an LOA of 42 m, LWL of 40.2 m, beam of 8.3 m, depth of 3.2 m, and draft of 2.3 m. Simulations were performed at 10 knots using the RANS equations, the SST k-omega turbulence model, and a Volume of Fluid approach for the air-water interface. Total resistance decreased from 9425.965 N for the bare hull to 9134.796 N with the fin, corresponding to a 3.089% reduction. Flow visualization also indicated local changes around the fin and in the pressure field. The analyzed configuration therefore reduced resistance under the simulated operating condition.
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