The invention provides a method for forming, regulating and reducing a cavitation air film on the surface of a micro-structure modified sphere. The behavior of a water film on a sphere interface and the capture and the shape of a cavitation bubble are regulated and controlled by designing the position and the modification proportion of the microstructure. A water inlet cavitation generation strategy of cross-medium water inlet is combined with an air film resistance reduction technology, so that the underwater resistance reduction efficiency is effectively improved, an air film is formed on a full-etching surface and can also be formed on a partial-etching surface, that is, the air film is formed on surfaces with different microstructure modification proportions, and the air film resistance reduction efficiency is improved. Therefore, the problems of high energy consumption, damage to the surface of the aircraft, high maintenance cost and the like in the existing underwater drag reduction technology are solved.

    本发明提供了一种微结构修饰小球表面空泡气膜形成、调控及减阻方法。通过设计微结构的位置与修饰比例来调控水膜在球体界面上的行为和空泡的捕获与形状。将跨介质入水的入水空泡产生策略与气膜减阻技术相结合,有效提高水下减阻效率,使得气膜不仅在全刻蚀表面上形成,而且能在部分刻蚀表面上形成,即在不同微结构修饰比例表面上形成,从而解决现有水下减阻技术中能耗高、对航行器表面有损伤和维护成本高等问题。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Microstructure modified sphere surface cavitation bubble gas film forming, regulating and resistance reducing method


    Weitere Titelangaben:

    一种微结构修饰小球表面空泡气膜形成、调控及减阻方法


    Beteiligte:
    WANG JINGMING (Autor:in) / XIE JINGJING (Autor:in) / YAO CHANGZHUANG (Autor:in)

    Erscheinungsdatum :

    07.04.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



    Universal method for achieving forming, regulating and drag reducing of cavitation air film on surface of cylinder

    YAO CHANGZHUANG / WANG JINGMING / ZHOU YANJIAO | Europäisches Patentamt | 2021

    Freier Zugriff

    Method for reducing wall surface cavitation by regulating and controlling cavitation jet flow through filaments

    CHEN JIE / BAO FUBING / TU CHENGXU et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    Cavitation bubble forming method for drag reduction of underwater navigation body

    CAO JIAMU / NIE HUANGHUI / CHEN LIANG et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Cloud Cavitation and Bubble Interaction

    Chahine, G. L. / United States / Department of Commerce et al. | British Library Conference Proceedings | 1986


    Cavitation bubble wake flow suppression device for surface ship propeller

    WANG YUN / MENG QINGJIE / GU WEI et al. | Europäisches Patentamt | 2021

    Freier Zugriff