Assembly layout design method for water surface ship stern shape and water-jet propeller

The invention relates to an assembly layout design method for a water surface ship stern and a water-jet propeller, which comprises the following steps: S1, researching the characteristics of the water surface ship stern, considering the assembly layout form of the water-jet propeller, and adaptively improving the lifting point and cross section characteristics of the stern ship; s2, designing a diversion trench in front of the conduit, wherein the design factors comprise the initial position, width and depth of the diversion trench; and S3, in combination with the embedded connection form of the propeller and the shafting layout scheme, the influence of resistance and a wake field is comprehensively considered, appendage type selection is carried out according to the stern layout form, and the optimal appendage scheme is selected. According to the invention, the strength, vibration, flow field and other aspects of the propeller are comprehensively considered to form a stern structural style with a guide pipe