08.2021.112.120

A CFD Study on Blade Geometry of Ship Propellers

Author(s):

Tuan Phan Anh, Tan Vu Van

Affiliation(s):

Hanoi University of Science and Technology, Hanoi 10000, Vietnam.
Sao Do University, Haiduong 03000, Vietnam.

Corresponding Author Email: tuan.phananh@hust.edu.vn

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

The performance of ship propellers is depended on many factors. In which, blade geometry has a strong effect on the performance. Therefore, in the fact, each type of ships will uses some special types of propellers. For examples, cagor ships usually use Seri B propellers, passenger and high speed ships uses Gawn propeller, tugs use Kaplan propellers. In this works, a Gawm propeller is modified its blade geometry for estimation the performance on creating thrust. The blade geometry factors of the propeller is modified by changing number of blades, blades thickness and rake angle. The study is conducted by Computational Fluid Dynamics (CFD) method. A ROV propeller with three blades has been investigated for considering the effect of its blade geometry factor to performance of creating thrust. Result shows that when the propeller rotates at low speed, the blade thickness and rake angle do not have valuable effect on the created thrust. However, when the propellers rotate at high speed, the blade thickness and rake angle of the blades will have a little effect on the created thrust of the propeller.