The invention discloses a thermal jet device and method for controlling underwater airfoil flow-induced noise, and relates to the field of acoustic measurement. The problem existing in traditional flow-induced noise is solved. In the direction from an inflow end to an outflow end, a heating tank is sequentially connected with an inflow pipe, an inflow ball valve, a thermal jet tank and a jet ball valve and then connected into a jet pipe, an outlet of the jet pipe is connected with a temperature sensor and a flow meter, the bottom of the thermal jet tank is connected with a driving motor through a steel wire lever, and the driving motor is connected with a motor driving controller. And finally, water is ejected from the trailing edge area of the underwater airfoil. The thermal jet not only supplements momentum for the boundary layer, but also changes the viscosity of water by using temperature, so that the flow field can be further stabilized, and the acoustic stealth performance of the underwater vehicle with the wing-shaped structure is effectively improved.
一种控制水下翼型流激噪声的热射流装置及方法,它涉及声学测量领域。它解决了传统流激噪声存在的问题。本发明的装置从进流端到出流端方向,由加热罐依次连接进流管、进流球阀、热射流罐、射流球阀,然后连入射流管,射流管的出口连接温度传感器和流量计,热射流罐的底部通过钢丝杠与驱动电机相连,驱动电机与电机驱动控制器连接,最终将水从水下翼型的尾缘区域射出。本发明的热射流不但给边界层补充动量并且利用温度改变水的黏性,可进一步稳定流场,有效提高附有翼型结构水下航行器的声隐身性能的优点。
Thermal jet device and method for controlling underwater airfoil flow-induced noise
一种控制水下翼型流激噪声的热射流装置及方法
27.02.2024
Patent
Elektronische Ressource
Chinesisch
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