Analisis Pengaruh Tipe Nozzle dan Tip Clerance terhadap Kinerja Propeller K-Series menggunakan Metode Computational Fluid Dynamics (CFD)

Abstract

Many innovations have been developed in the shipbuilding industry, such as the use of waterjet
and azipod propulsion systems. However, these options are considered less effective. FInally the shipping
industry has innovated by adopting ducted propeller technology. This Final Year Project aims to conduct
fluid flow simulation tests on the propeller with variations in nozzle sizes, namely 19A and 37 and tip
clearance values of 20 mm, 30 mm, 40 mm, 50 mm, and 60 mm. The analysis is performed using
Computational Fluid Dynamics (CFD) to obtain values for thrust, torque, and efficiency. The simulation
results, the smaller tip clearance, the greater resulting thrust and torque values, namely 61874 N and 13128
Nm on models with a 20 mm tip clearance. Then, the greater value of thrust or torque, the better performance
of the propeller. The largest thrust value was obtained, namely 61874 N and the largest torque, namely 13128
Nm. Thus, the propeller has good performance when paired with nozzle 37. For efficiency, the better the
performance of the propeller with the recommended nozzle type and tip clearance is 37 nozzle and 20 mm tip
clearance with the greatest efficiency value is at J 0.6 of 0.686.