Study on the Performance and Flow of Marine Propeller in Open Water with Computational Fluid Dynamics (CFD)

Chin, Khee Yuen (2021) Study on the Performance and Flow of Marine Propeller in Open Water with Computational Fluid Dynamics (CFD). Final Year Project (Bachelor), Tunku Abdul Rahman University College.

Text CHIN KHEE YUEN_Full text.pdf Restricted to Registered users only Download (5MB)

Abstract

Marine propeller is widely used in ships to move the ship by propelling the ships forward. The design of the propeller is crucial because it has a significant impact on the performance of the propeller. Rake angle and number of blades are some of the parameters of a propeller design. This project presents the study of the effect of rake angle and blade number have on the performance of the propeller and the flow of the propeller through CFD analysis. Multiple propellers such as propellers with different rake angles and different numbers of blades were used to study the effect of it. Open water characteristics such as thrust coefficient, torque coefficient and efficiency were used to evaluate the performance of the propeller. Moreover, pressure and velocity distribution of the propeller had also been conducted to understand the flow of the propeller. The results found that all thrust coefficient and torque coefficient decreases with the increasing of advance ratio and the efficiency increases to optimum peak efficiency before decreasing drastically with increase of advance ratio. Furthermore, the results found that the effects of rake angle on the performance of the propeller were small. However, the effects of blade number on the performance of the propeller were found to be significant.