涂料粗糙度对平板阻力的实验研究

IF 1.3 4区工程技术 Q3 ENGINEERING, CIVIL

Journal of Ship Research Pub Date : 2023-12-20 DOI:10.5957/josr.01230003

E. Kiosidou, Dimitrios E. Liarokapis, Georgios D. Tzabiras, Dimitrios I. Pantelis

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引用次数: 0

摘要

在这项工作中，对使用新开发的聚氨酯（PU）和硅酮（Si）配方船舶防污漆的平板的流体阻力进行了实验研究。总共使用了六种不同的硅酮、聚氨酯和丙烯酸涂料体系，既有实验性的，也有商业性的。在 0.75-2.5 米/秒的范围内，以 0.25 米/秒为一个步长，通过拖曳槽试验测量了板上每种涂漆状态的总阻力。硅配方和聚氨酯配方表现出相似的流体力学行为，在光滑状态附近波动，而丙烯酸配方的阻力增幅最大。粗糙度函数的计算以 Ra 为基础，对于大多数系统而言，与 Colebrook 粗糙度函数的相关性普遍有限。对船舶尺度的推断表明，不同类型的涂料系统在涂漆状态下预计不会出现明显的阻力差异。

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Experimental Investigation of Paint Roughness on the Resistance of a Flat Plate

In this work, an experimental investigation of the hydrodynamic resistance of a flat plate painted with newly developed marine antifouling paints of polyurethane (PU) and silicone (Si) formulations was performed. In total, six different paint systems of Si, PU, and acrylic formulations were applied, both experimental and commercial. The total resistance of each painted condition of the plate was measured through towing tank tests for the range of 0.75–2.5m/sec, with a step of 0.25m/sec. The Si and PU formulations exhibited similar hydrodynamic behavior, fluctuating around the smooth condition, whereas the acrylic system exhibited the highest resistance increase of all. The roughness function calculation was based on Ra and the correlation with the Colebrook roughness function was generally limited for most systems. Extrapolation to ship scale revealed that no significant drag differences are expected in the as-painted condition among the different paint system types.

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来源期刊

Journal of Ship Research 工程技术-工程：海洋

CiteScore

2.80

自引率

0.00%

发文量

审稿时长

6 months

期刊介绍： Original and Timely technical papers addressing problems of shipyard techniques and production of merchant and naval ships appear in this quarterly publication. Since its inception, the Journal of Ship Production and Design (formerly the Journal of Ship Production) has been a forum for peer-reviewed, professionally edited papers from academic and industry sources. As such, it has influenced the worldwide development of ship production engineering as a fully qualified professional discipline. The expanded scope seeks papers in additional areas, specifically ship design, including design for production, plus other marine technology topics, such as ship operations, shipping economic, and safety. Each issue contains a well-rounded selection of technical papers relevant to marine professionals.