The invention discloses a high-pressure jet propulsion and bubble drag reduction integrated underwater vehicle. The underwater vehicle comprises an underwater vehicle shell, a high-pressure gas generator, an annular nozzle, a guide pipe and an air pressure regulation and control valve. Wherein the high-pressure gas generator is fixed inside the underwater vehicle shell, the annular nozzle is arranged in the direction of the central axis of the underwater vehicle shell, one end of the guide pipe is fixedly connected with the nozzle in a sealed mode, and the other end of the guide pipe is fixedly connected with the high-pressure gas generator in a sealed mode. And the gas generated by the high-pressure gas generator can be jetted into external fluid through the guide pipe and the annular nozzle. High-pressure gas is jetted into external fluid, and when the underwater vehicle is propelled to move forwards at a high speed, a large number of bubbles are generated and move along the outer surface of the underwater vehicle in a wall-attached mode, so that near-wall-surface fluid is separated by the high-pressure gas, and the density and viscosity of far-wall-surface external fluid are reduced; therefore, the coherent structure of the whole flow field is influenced, the comprehensive frictional resistance is greatly reduced, and the turbulence stress and noise are reduced.
本发明公开了一种高压喷气推进与气泡减阻一体化水下航行器,包括水下航行器壳体、高压气体发生器、环形喷嘴、导管和气压调控阀门。其中,高压气体发生器固定于水下航行器壳体内部,环形喷嘴沿水下航行器壳体中轴线方向布置,导管一端与喷嘴密封固定连接,另一端与高压气体发生器密封固定连接,并保证由高压气体发生器产生的气体能够通过导管和环形喷嘴喷射到外部流体中。本发明将高压气体喷射到外部流体中,在推进水下航行器向前高速运动的同时,会产生大量的气泡沿水下航行器外表面附壁运动,使近壁面流体被高压气体隔开,并减小远壁面外部流体密度和黏度,进而影响整个流场的拟序结构而使综合摩擦阻力极大降低,并减小湍流应力和噪声。
High-pressure jet propulsion and bubble drag reduction integrated underwater vehicle
高压喷气推进与气泡减阻一体化水下航行器
2025-03-14
Patent
Electronic Resource
Chinese
IPC: | B63G OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS , Angriffs- oder Verteidigungsanordnungen auf Schiffen / 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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