Parameterization generation method for full-hexahedron mesh model of ship propeller rotor

The invention relates to a parameterization generation method for a full-hexahedron mesh model of a propeller rotor, which does not need to carry out three-dimensional modeling of a geometric model firstly, directly obtains three-dimensional space coordinates of all nodes of the mesh model through mathematical conversion, and directly calculates and obtains a corresponding relation between a unit and a mesh based on a distribution rule of the nodes and mesh units; according to the optimization algorithm of the distribution of the height of the hexahedron grid along the radial direction, the purpose that the height of the radius grid with the large chord length is large and the height of the radius grid with the small chord length is small is finally achieved, and the optimization target that the length-width ratio of the whole grid of the blade is closest to a square is achieved. Compared with a traditional rotor grid division method, the method has the advantages that the step of geometric creation is omitte