The study of multi-parameter optimization design of ducted propeller

Abstract

Using the prediction method of surface element method and particle swarm optimization algorithm to study the multi-parameter optimization design of ducted propeller. Hicks-Henne function and Bezier function are used to fit the parameter curve of the ducted propeller. Taking the open water efficiency of the ducted propeller as the optimization target, the numerical simulation was performed. By analyzing the result, the multi-parameter coupling optimization design of the ducted propeller can be achieved. After optimization, the open water efficiency and thrust coefficient at the design points have been improved. Among the two fitting methods, the Bezier function gives a better result, which is consistent with the actual engineering. Within the range of the common speed coefficient of each ducted propeller, the efficiency and thrust are improved and meet the requirements. The feasibility and effectiveness of the multi-parameter coupling design of the ducted propeller are verified.