Fluid-structure interaction numerical calculation method for interaction of water outlet revolving body and crushed ice

The invention relates to the technical field of polar region underwater navigation, in particular to a fluid-solid coupling numerical calculation method for interaction of an effluent revolving body and crushed ice. Comprising the following steps: 1) establishing a fluid dynamic model in the high-speed water outlet process of the rotary body in a fluid solver, establishing a crushed ice discrete element model, and further establishing a coupling model of the fluid dynamic model and the crushed ice discrete element model; 2) establishing a structural dynamics solving model in a solid solver; and 3) coupling the computational fluid dynamics model of the high-speed water outlet process of the revolving body, the crushed ice discrete element model and the structural dynamics solution model, constructing a fluid-solid coupling model of interaction of the water outlet revolving body and the crushed ice, simulating the water outlet process, and performing iterative loop calculation in the simulation process until a