The invention discloses a cavitation bubble forming method for drag reduction of an underwater navigation body, and relates to an underwater drag reduction technology. The invention aims to solve the problem that the formation condition of the supercavitation of the existing underwater vehicle is harsh. The method comprises the steps that firstly, trepanning treatment is conducted on the side surface of the underwater navigation body, and the navigation body with vent holes in the side surface is obtained; and carrying out super-hydrophobic treatment on the navigation body with the vent holes in the side surface. According to the cavitation bubble forming method for drag reduction of the underwater navigation body, in the running process of the underwater navigation body, gas can be led out of the vent holes in the side surface of the navigation body to cover the side surface of the navigation body, the interface of the navigation body is effectively converted into a solid-gas-liquid interface from a solid-liquid interface, and the surface super-hydrophobic treatment of the navigation body is combined, so that the drag reduction effect of the underwater navigation body is improved. The surface contact angle of the navigation body can be effectively increased, the supercavitation generation condition of the underwater navigation body is reduced, supercavitation generation of the navigation body is promoted, most of the surface of the navigation body is separated from water, and resistance borne by the underwater navigation body during navigation is reduced.

    一种用于水下航行体减阻的空泡形成方法,它涉及水下减阻技术。本发明的目的是要解决现有水下航行体超空泡形成条件苛刻的问题。方法:首先在水下航行体的侧表面进行开孔处理,得到侧表面含有通气孔的航行体;对侧表面含有通气孔的航行体进行超疏水处理。本发明提供的一种用于水下航行体减阻的空泡形成方法,可在水下航行体行驶过程中,航行体侧表面通气孔将通出气体,覆盖航行体侧表面,有效将航行体界面由固‑液界面转变为固‑气‑液界面,结合航行体表面超疏水处理,可有效增大航行体表面接触角降低水下航行体生成超空泡的条件,促进航行体超空泡生成,使得航行体大部分表面与水隔开,降低水下航行体航行时所受阻力。


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    Title :

    Cavitation bubble forming method for drag reduction of underwater navigation body


    Additional title:

    一种用于水下航行体减阻的空泡形成方法


    Contributors:
    CAO JIAMU (author) / NIE HUANGHUI (author) / CHEN LIANG (author) / LIANG HAO (author)

    Publication date :

    2024-11-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    C23C Beschichten metallischer Werkstoffe , COATING METALLIC MATERIAL / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63C LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS , Zuwasserlassen, Trockenstellen, Docken oder Bergen von Schiffen



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