Optimization of Propeller Tunnel Design for the Polbeng II Ship

Abstract

The Polbeng II ship is one of the crew vessels owned by Bengkalis State Polytechnic. This ship plays a vital
role in supporting various research and exploration activities in the waters of Bengkalis. To enhance the ship's
performance in terms of speed, the addition of a propeller tunnel component has significant potential to improve the
vessel's speed and efficiency. The tunnel is designed based on the propeller diameter (D) used by the Polbeng II ship, and
this study compares several design model variations of 20%D, 30%D, 40%D, and 50%D in relation to the distance from
the rudder. The objective is to achieve the highest flow pressure value among the four design model variations using CFD
evaluation based on an input fluid flow velocity of 1 m/s. The evaluation results indicate that the model with 40%D
yields the highest pressure value of 103.73 pascals, along with a flow velocity of 2.018 m/s.