| Budget Amount *help |
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2019: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2018: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
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| Outline of Final Research Achievements |
The objective of the present study is to develop a new method for separating resistance components of a ship based on hydrodynamic principle with the aid of CFD analysis. The developed separation method is applied to the resistance extrapolation from a model scale to a ship scale. The reconstruction of ship Resistance theory is achieved by considering validity of various assumptions to separate the resistance components, such as flat plate friction, form factor for viscous resistance and wave making resistance. CFD methods including a newly developed inviscid flow computation methods are applied for flow analyses and characteristics of each resistance component is extracted. Based on the obtained knowledge, a new procedure for extrapolating resistance of a full scale ship from tank test data of a model ship is proposed.
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