CFD simulation optimization and verification method for appearance of dish-shaped underwater helicopter

The invention relates to an underwater vehicle shape optimization and hydrodynamic verification technology, and aims to provide a CFD simulation optimization and verification method for a disc-shaped underwater helicopter shape. Comprising the following steps: establishing a simulation domain model and a simplified three-dimensional model; locally modifying the shape of the model, then obtaining transient resistance data of the surface of the model again, and comparing the transient resistance data with data before optimization; judging the appearance optimization effect according to the comparison result so as to determine whether further optimization is needed or not; gradually optimizing the shape of the model according to the principle that the tangent point of the optimized linear contour of the tail of the helicopter and the original contour continuously moves upwards; and when a hydrodynamic test is carried out on a final model, the optimal resistance reduction effect can be achieved in any x-axis dire