Application the multi-purpose optimization method for design the form of the driving wheel blade at rotary-blade hydroturbine

Existing process of engineering design the flowing parts of water-wheels is difficult and labor-intensive process, demanding wide engineering experience and extensive statistical database. The complex of optimizing design "CADRUN-OPT" is developed for increase the efficiency and automation of this process in JSC “Power Machines” together with institutes of SB RAS. As a method of optimization the genetic algorithm is chosen. Application of program complex to design the blades system at rotary-blade driving wheel is considered. The problem of multi-purpose optimization of a form of the blade is solved with use of three target functionals, in the course of the decision the hydroturbine efficiency in points of optimum of the universal characteristic and in calculated point corresponding to the maximum power at calculated pressure, and cavitational qualities of blades system is optimized. As object of parametrization the surface of the blade of driving wheel, described by means of 24 parameters gets out. The efficiency of the water-wheel is determined by results of hydrodynamic calculation with use of k-ε model of turbulence in statement distributor – driving wheel – draft tube.