Viscous-flow-based automatic control motion calculation method for underwater vehicle under jumping sea condition

The invention relates to a viscous-flow-based automatic control motion calculation method under a saltation sea condition of an underwater navigation body. The method comprises the following steps: S1, carrying out numerical modeling of a computational domain according to an internal wave and the scale of the underwater navigation body; s2, based on an RANS method, adopting a VOF method and an internal solitary wave theory to carry out numerical wave generation, and combining a motion control equation to realize motion calculation of the underwater vehicle under the action of the internal solitary wave; s3, adopting an overlapped nested grid to realize the self motion of the underwater vehicle and the local motion of a control surface; and S4, realizing automatic manipulation control of the underwater navigation body under environmental interference by adopting a numerical control method. Aiming at the defects in the existing production technology, the invention provides the viscous-flow-based automatic contr