The flow analysing through propeller is sophisticated
particularly at turbulent mode; this yields complication
for propeller design. This study has developed method for
propeller design to become more practical. The 3D
propeller shape can be drawn by defining skew, pitch,
chord, rake and thickness. With these parameters, each
component of propeller is easy to adjust; moreover, the
3D geometry can be formed easily. Then, the CFD is
used to simulate openwater characteristics of the 3D
propeller.
By using the present method, it is more convenient
and takes lesser time to design and develop a propeller
suitable for each boat than using an usual experimental
method. The openwater characteristic of propeller is
important to boat speed. The appropriate boat speed and
propeller rotational speed affect directly the propulsion
performance resulting in improved fuel economy