Analysis of Ship Resistance Based on Horizontal Placement of Fin Stabilizer Using CFD Software

Abstract

Fin stabilizer is an anti-rolling system that responds to rolling motion due to external forces and affects the stability and safety of personnel, cargo, and the ship itself. As a result, the addition of a fin stabilizer affects the ship resistance (appendage resistance). This research has been carried out on the type of patrol boat to determine the effect of horizontal fin placement on the ship's resistance. This research focus is based on foil NACA 0010 as fin stabilizer. The study begins by verifying and validating the model before using the fin stabilizer, which aims to check whether the model to be developed has presented the expected conditions, as well as a comparison between the needs of the model that has been tested and the patrol boat design, made using the maxsurf modeler, Rhinoceros and numeca fine marine with a maximum error of 3%. The design results show a maximum error of 2.57%, so the research is continued with the addition of a foil type Naca 0010 with an angle of attack 0°, 5°, 10°, 15° and speed variations from 25 knots to 30 knots. The largest additional resistance addition has been obtained at angle of attack 15 and speed 30 knoots, with the best value at the 24 m fin positin of 18.8% and it is in accordance with the conditions in the fin stabilizer. Seakeeping analysis results using software shipmo best on fin 2 continued to fin 1, fin 3, Fin 4 and bare hull.