Application of VBA in aided design of water turbine

To make better use of automatic computer drawing technology and Francis water-turbine blade design theories,the secondary development using VBA of Microsoft Excel is performed to control AutoCAD to draw the part of water turbine graph automatically,the 3D drawing of blades and speed triangle drawing are achieved,and the integration of parameter computation and drawing of water turbine blades are implemented.The method can improve the design efficiency and reduce the repeated workload greatly,and provide some references for the parameter optimization and design optimization of water turbine blades.