Development of Estimation Method for Resistance in Irregular Waves with Consideration of Hull Form above the Waterline

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420835
• 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: National Institute of Maritime, Port and Aviation Technology
• Principal Investigator: KURODA Mariko 国立研究開発法人海上・港湾・航空技術研究所, その他部局等, 研究員 (40462874)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 不規則波中抵抗増加 / 長周期変動 / 波高影響

Outline of Final Research Achievements

The long-period component of added resistance in irregular waves, which had not been considered by the conventional method for added resistance due to waves, has been studied. The estimation method for long-period component of drift force to offshore structure has been applied to added resistance in waves on a running ship. As a result of the comparison with tank test results, it has been shown that the long-period component of added resistance in irregular waves could be expressed by the method. In addition, it has been shown that the wave height effect should be considered for the estimation of the long-period component since the amplitude of encountered irregular waves varies with respect to each half-wave.

Free Research Field

船舶海洋工学　実海域性能　波浪中抵抗増加