The invention discloses a ship body drag reduction structure based on shark gill bionic jet flow, and relates to the technical field of ship drag reduction. The ship body drag reduction structure comprises a ship body and a plurality of drainage stand columns, a concave cavity is formed in the lower side of the outer surface of the ship body towards the interior, and the drainage stand columns arevertically arranged in the concave cavity side by side; a water flow inlet channel is arranged between the plurality of drainage stand columns and the inner bottom wall of the concave cavity, one port of the concave cavity is the inlet end of the water flow inlet channel, and a water flow drainage channel is formed between every two adjacent drainage stand columns; when flowing through the outersurface of the ship body, water flow flows into the water flow inlet channel from the inlet end and flows out of the water flow drainage channels, and jet flow is formed when the water flow flows outof the water flow drainage channels. The ship body drag reduction structure based on shark gill bionic jet flow can effectively control the speed gradient of the outer wall face of the ship body, restrain boundary layer separation, reduce the friction resistance of the ship body and improve the energy efficiency of a ship, water flow playing a drag reduction role is consistent with main flow, dragreducers and additive substances do not need to be added, and the ship body drag reduction structure is environmentally friendly and free of pollution.

    本发明公开了基于鲨鱼鳃仿生射流的船体减阻结构,涉及船舶减阻的技术领域,船体减速结构包括船体和多根排水立柱,船体的外表面的下侧向其内部设有凹腔,凹腔内沿竖向并排设置有多根排水立柱,多根排水立柱与凹腔内底壁之间设有水流进水通道,凹腔的一端口为水流进水通道的入口端,相邻的两排水立柱之间形成水流排水通道;水流流经船体外表面时,从入口端流入水流进水通道,从多个水流排水通道流出,水流流出多个水流排水通道时形成射流。本发明的基于鲨鱼鳃仿生射流的船体减阻结构可有效控制船体外壁面速度梯度,抑制附面层分离,减小船体摩擦阻力,提高船舶的能效,起减阻作用的水流与主流一致,无需增加减阻剂、添加剂物质,绿色环保无污染。


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    Titel :

    Ship body drag reduction structure based on shark gill bionic jet flow


    Weitere Titelangaben:

    基于鲨鱼鳃仿生射流的船体减阻结构


    Beteiligte:
    YANG LING (Autor:in) / ZHONG JINGJUN (Autor:in) / WU WANYANG (Autor:in)

    Erscheinungsdatum :

    2021-01-22


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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