Study on hydrodynamic optimization of marine propeller considering pre-swirl inflow

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420871
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Naval and maritime engineering
• Research Institution: Kyushu University
• Principal Investigator: ANDO JUN 九州大学, 工学(系)研究科(研究院), 教授 (60211710)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 船舶工学 / プロペラ / 省エネルギー

Outline of Final Research Achievements

It has been well known since long ago that opposite direction pre-swirl inflow to propeller rotation due to fins in front of propeller decreases delivered horse power, namely increases propulsive performance. In this study, the effect of pre-swirl inflow on propulsive performance was elucidated by fundamental experiment and optimization method for propeller blades considering increment of hull resistance due to fins in self-propelled condition and appropriate propeller rotational speed was developed. The usefulness of the present optimization method was confirmed by the performance test of the improved propeller in pre-swirl inflow.

Free Research Field

船舶流体力学