The synergistic effect of drag reduction and antifouling of bionic jet surface

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI:10.1109/ICTIS.2015.7232103

Yifeng Fu, C. Yuan, Xiuqin Bai

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引用次数: 1

Abstract

Antifouling and drag reduction of ships are two critical issues in the shipping industry, which significantly affect the efficiency, safety, reliability of ships. Drag reduction by the bionic jet surface is an effective approach for reducing the energy consumption of ships. However, complicated by the impact of marine biofouling, it is invalid to consider the isolated effect of drag reduction of jet surface. Inspired by jet function of shark gills, which have the synergistic effect of antifouling and drag reduction, bionic jet structure model similar to the jet characteristic of shark gills was established. The antifouling function of bionic jet is analyzed, and the ability of drag reduction is also studied with the methods of theoretical analysis and numerical simulation. The jet diameter and velocity of bionic jet surface are analyzed, and numerical simulation is used with SST k-ω turbulent model. The results reveal coupling of appropriate jet diameter and jet velocity was feasible to realize the synergistic effect of drag reduction and antifouling of bionic jet surface.

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仿生射流表面减阻防污的协同效应

船舶的防污和减阻是航运业的两个关键问题，对船舶的效率、安全性和可靠性有着重要的影响。仿生射流表面减阻是降低船舶能耗的有效途径。然而，由于海洋生物污染的复杂影响，单独考虑射流表面减阻效应是不合理的。借鉴鲨鱼鳃具有防污减阻协同作用的射流功能，建立了与鲨鱼鳃射流特性相似的仿生射流结构模型。分析了仿生射流的防污功能，并采用理论分析和数值模拟的方法研究了仿生射流的减阻能力。分析了仿生射流表面的射流直径和射流速度，并采用SST k-ω湍流模型进行了数值模拟。结果表明，适当的射流直径和射流速度耦合是实现仿生射流表面减阻和防污协同效应的可行方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2015 International Conference on Transportation Information and Safety (ICTIS)

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