New body force distribution method for computation of hull-propeller-rudder interaction

2015 Fiscal Year Final Research Report

• Project/Area Number: 24246142
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Naval and maritime engineering
• Research Institution: Osaka University
• Principal Investigator: Toda Yasuyuki 大阪大学, 工学(系)研究科(研究院), 教授 (20172166)
• Co-Investigator(Kenkyū-buntansha): MATSUMURA Kiyosige 大阪大学, 大学院工学研究科, 准教授 (10135668)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: CFD / プロペラ船体干渉 / 体積力モデル / 操縦運動 / 波動中運動

Outline of Final Research Achievements

New body-force concept is proposed. In this method, the flow velocity components at propeller plane in CFD computation are used directly to predict the body force distribution. So, the subtraction of induced velocity and interpolation are not required. By using this method, propeller-rudder-hull interaction problem with energy saving devices in calm water is computed and compared with experiments. The present method can predict well in local and global quantities. The flow field around self-propelled ship model in waves is computed and the results show good agreement with measurement.

Free Research Field

船舶流体力学