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A method of the optimal hydraulic design and CAD application of runner blades of axial-flow hydraulic turbines are discussed on the basis of optimization principle and CAD technique in this paper. Based on the theory of fluid dynamics, the blade′s main geometri cal parameter, working parameters and performances index of the blades and the r elationship between them are analysed, and the mathematical model of optimal hyd raulic design of axial-flow runners has been established. Through nonlinear pro gramming, the problems can be solved. By making use of the calculation geometry and computer graphics, the distribution method of the singular points, and an CA D applied software, an optimal hydraulic design are presented.
A method of the optimal hydraulic design and CAD application of runner blades of axial-flow hydraulic turbines are discussed on the basis of optimization principle and CAD technique in this paper. Based on the theory of fluid dynamics, the blade’s main geometri cal parameter , working parameters and performances index of the blades and the r elationship between them are analysed, and the mathematical model of optimal hyd raulic design of axial-flow runners has been established. Through nonlinear pro gramming, the problems can be solved. By making use of the calculation geometry and computer graphics, the distribution method of the singular points, and an CA D applied software, an optimal hydraulic design are presented.