Study on a Development of Ocean Wave Control

海浪控制发展研究

• 批准号: 63460147
• 负责人: TAKAKI Mikio
• 金额: $ 4.54万
• 依托单位: HIROSHIMA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1989
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-63460147/
• 关键词: Step Type Breakwater; Optimum Configuration; Submerged Horizontal Plate; Ocean Wave Control; Exchange of Sea Water; Environmental Protection; 没水水平板; 戻り流れ砕波; 長波長域の消波

We have studied the way to control ocean -waves since 1988. and have developed. the new type breakwater which is the most suitable for an ocean environmental protection. The main conclusions got in this study are summarized as follows: 1. We have made clear the breakwater performance of a submerged horizontal plate and have found out a new mechanism of breakwater which is named "backward flow breaker". 2. We have made up the equation to evaluate the dimensions of the submerged horizontal plate which is the most suitable for an ocean wave condition. 3. We have made clear the breakwater performance of a wing shaped plate, which is more useful for short waves but is not so useful for long waves. 4. We have developed the new breakwater called "Step Type Breakwater", of which the breakwater of efficiency is higher than 60 % for both regular and irregular waves. 5. We have found out the phenomenon in which a flow takes place in the backward region of the sub merged plate. The flow speed is proportional to the square root of an incident wave height. It seems that the flow is useful for the exchange of the sea water in enclosed coastal seas. 6. We have got the basic data such as wave loads on a plate, mooring tension etc. in order to design an actual breakwater.

自1988年以来，我们已经研究了控制海洋波动的方法。最适合海洋环境保护的新型防波堤。在这项研究中得出的主要结论总结如下：1。我们已经明确了淹没的水平板的防波堤性能，并发现了一种新的防波堤机制，该机制被称为“向后流动障碍物”。 2。我们组成了方程，以评估最适合海浪条件的水平板的尺寸。 3。我们已经清楚地表明了机翼形板的防波堤性能，这对于短波更有用，但对于长浪并不是那么有用。 4。我们开发了一种称为“步型防波堤”的新防波堤，对于常规波和不规则波的效率均高于60％。 5。我们发现了在子合并板的向后区域中发生流动的现象。流速与入射波高度的平方根成正比。似乎流动对于在封闭的沿海海中交换海水很有用。 6。我们已经获得了基本数据，例如板上的波载，系泊张力等，以设计实际的防波堤。

项目成果

Mikio Takaki: "BREAKWATER EFFECT OF A SUBMERGED HORIZONTAL PLATE" Pacific Congress on Marine Science & Technology. OST87-94 (1988)

Mikio Takaki：“水下水平板块的防波堤效应”太平洋海洋科学大会

高木幹雄: '89日本沿岸域会議研究討論会. 1989.

Mikio Takagi：89 日本沿海地区会议研究讨论组，1989 年。

Mikio Takaki: "Exchange of Sea Water in Enclosed Coastal Seas by a Submerged Horizontal Plate." 10th Ocean Engineering Symposium 1990.

Mikio Takaki：“封闭沿海海洋中水下水平板块的海水交换。”

高木幹雄: "没水平板による波浪制御と水流発生について" 世界閉鎖性海域環境保全会議(投稿中). (1990)

Mikio Takagi：“关于水下水平板的波浪控制和水流生成”世界封闭海洋环境保护会议（目前正在提交）（1990 年）。

許平,高木幹雄,肥後靖: "大振幅上下揺する軸対称体に働く非線形流体力に関する研究" 西部造船会会報. 77. 105-116 (1989)

Kohei、Mikio Takagi、Yasushi Higo：“作用于大幅上下摆动的轴对称物体上的非线性流体力的研究”西方造船学会公报 77. 105-116 (1989)。