Dynamic Design of the Turbomachinery Blade with the Joint Application of the Newly Developed Constrained Zone and the PSO Algorithm

New design approach to improve the turbomachinery performance is the research hot in various areas. In order to make up for the shortcomings about the uncertain design variables ranges and the simple 2D blade profile design method in previous studies, a modified inverse design approach established on the newly derived constrained zone and the PSO algorithm has been proposed in this study, and a developed design program with the Matlab platform was developed. With the adoption of the scaled 1:2.5 hydraulic model of the CAP1400 impeller as the target, the proposed joint design method was applied and verified.