Influence of Different Incoming Flow Directions on the Flow Characteristics of Underwater Manipulator

Underwater manipulator plays a huge role in the exploration and obtainment of marine resources. However, the working attitude of underwater manipulator forms different angles with the ocean flow direction, leading to changes in the hydrodynamic performance and flow field characteristics. Therefore, this paper focuses on the flow characteristics of underwater manipular several operating attitudes with different flow directions in the subcritical range. Simulation results show that the position of the section in the flow field is not related to the trend of hydrodynamic coefficients. With the increase of the incoming flow direction angle γ, the lift and drag coefficients increase and the velocity of the flow field accelerates.