带槽道桨水下机器人阻力特性的数值分析

自治水下机器人在低速航行时,单靠操舵方式难以保证其机动性。特别是作业过程中需要进行水下悬停定位时,经常会使用槽道桨。槽道桨在载体上形成贯穿式的孔洞结构,影响水下机器人直航过程中的阻力特性。本文借助流体动力数值仿真计算软件CFX,对槽道孔洞尺度改变、轴向位置改变时,水下机器人航行阻力所受到的影响进行了数值分析。数值分析得到的结论,对水下机器人槽道桨的工程设计和优化具有参考价值和指导作用。

When the Autonomous Underwater Vehicle(AUV)cruises in a lower speed,it will become difficult to guarantee its maneu-verability with rudders,especially when the AUV is doing dynamic position.The tunnel thruster is widely used to improve the AUV' s maneuverability in lower speed,Tunnel thruster forms a hole on the AUV's main body and it will affect the hydrodynamics of the AUV.With the help of CFX software,the resistance of AUV with tunnel thruster was analyzed.The analysis results are helpful to the design and optimization of tunnel thrusters for AUV.

中国科学院创新基金(P010906-05PR006601)