采用泵喷补偿技术的近底拖体水压场数值模拟研究

Numerical simulation of water pressure field near bottom towed body using pump spray compensation technology

摘要:

论文采用标准k-ε模型,结合Fluent软件,对采用泵喷补偿技术的拖体水下被拖行运动所产生的压力场变化进行了数值模拟实验。结果表明,采用泵喷补偿技术对拖体水压场的“马鞍形”分布特性影响较小,但随着喷水速度的增加,拖体首端压力负值略有增加,而中段的负峰幅值显著增加,当喷水速度达到一定值后,拖体的压力特性曲线已经较为接近期望值,证明本设计是有一定可能性的。

Abstract:

The paper adopts the standard k-ε model, combined with Fluent software, to carry out numerical simulation experiments on the change of pressure field generated by the underwater towing motion of the towed body with pump spray compensation technology. The results show that the pump spray compensation technology on the water pressure field of the towing body of the "saddle-shaped" distribution characteristics of the influence of small, but with the increase of the water spray rate, the first end of the towing body pressure negative value increased slightly, while the middle of the negative peak amplitude increased significantly, when the water spray rate reaches a certain value, the towing body of the pressure characteristics of the curve has been closer to the desired value, proving that the design is a certain possibility. This proves that the design is feasible.