Development of Towing Tank Simulator for Effective Use of Tank Facilities

• Project/Area Number: 26630452
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Naval and maritime engineering
• Research Institution: Yokohama National University
• Principal Investigator: Hino Takanori 横浜国立大学, 大学院工学研究院, 教授 (60373429)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 船舶流体力学 / 計算流体力学 / 船型試験水槽 / 水槽試験

Outline of Final Research Achievements

A towing tank simulator has been developed based on CFD technique in order to evaluate the accuracy of tank tests and to extend the usability of towing tanks. An overset grid method is adopted in which a grid block represents a tank geometry and a grid block for a model ship are separately generated and overlapped and a tank test condition is reproduced. In addition, a body force based propeller model for self-propulsion simulations is extended to an overset grid method. Computations by the towing tank simulator show the reflection of ship waves on the tank walls and the so-called blockage effect to the resistance is analyzed. These results demonstrates the applicability of the towing tank simulator.

Research Products

• [Presentation] 水槽形状を考慮した抵抗試験シミュレーション (2016)
  • Author(s): 大園拓実、日野孝則
  • Organizer: 日本船舶海洋工学会推進・性能研究会
  • Place of Presentation: 東京都三鷹市 海上技術安全研究所
  • Year and Date: 2016-10-20