提出一种综合海上波浪能转换装置的新型浮式平台,通过将一阻尼池型浮式平台与OWC波浪能装置结合,OWC气室前墙采用固定式和摆式,前墙摆板与气室通过铰链连接。基于三维势流理论,研究平台在不同波浪周期、平台吃水和气室尺寸下气室的俘获宽度比,及不同铰链转动阻尼下摆板的俘获宽度比。结果表明：不同平台吃水和不同气室尺寸通过影响平台和气室的共振周期影响气室的俘获宽度比,在较大的平台吃水和较小的气室前墙吃水条件下,会出现波浪抨击气室顶部和前墙露出水面的问题;在一定波浪环境下,存在一个最优的铰链转动阻尼,使得摆板的俘获宽度比最高;在固定的铰链转动阻尼下,摆板的俘获宽度比随波浪周期增大而逐渐减小,在波浪周期较小及平台共振周期处,摆式前墙结构比固定式前墙的气室俘获宽度比更大。
Abstract
A new type of floating platform with integrated offshore wave energy conversion device is proposed, by integrating a damping pool type floating platform with an OWC wave energy device, the front wall of the OWC chamber is fixed or connected to the chamber by a top hinge. Based on the three-dimensional potential flow theory, the capture width ratios of the air chamber and the pendulum front wall under different wave periods, different platform drafts and different air chamber sizes are studied. Results show that different platform drafts and different chamber sizes affect the capture width ratio of the chamber by influencing the resonance periods of the platform and the chamber, and under the condition of larger platform drafts and smaller chamber front wall drafts, the problem of wave slaming at the top of the air chamber and the front wall will occur. For a given wave environment, there exit an optimal hinge rotational damping, which makes the capture width ratio of the swing plate highest. For a given hinge rotational damping, the capture width ratio of the pendulum gradually decreases with increasing wave period, at lower wave periods and platform resonance periods, the pendulum front wall structure has a larger chamber capture width ratio than the fixed front wall.
关键词
波浪能转换 /
摆式 /
阻尼 /
振荡水柱 /
俘获宽度比
Key words
wave energy conversion /
pendulums /
damping /
oscillating water column /
capture width ratio
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基金
中央高校基本科研业务费专项资金（2022ZYGXZR0085）
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