OPTIMAL DESIGN METHOD OF IMPELLER AND DIFFUSER IMPELLER AND DIFFUSER DESIGNED BY THE METHOD AND CENTRIFUGAL AND MIXED FLOW PUMP HAVING THE SAME

摘要

Provided is an optimized design method of an impeller and a diffuser. The optimized design method of an impeller and a diffuser optimizes an impeller and a diffuser at the same time, which is connected to the impeller and discharges a fluid introduced through the impeller, at the same time to simultaneously satisfy a head and improve efficiency. The optimized design method of the impeller and the diffuser comprises: a step of determining a design variable and an objective function in consideration of the shape of the impeller and the diffuser; a step of determining a major design variable which affects a value of the objective function; a step of identifying an optimum design variable condition to optimize the value of the objective function; and a step of deriving the optimized shape of the impeller and the diffuser using a response surface method with the optimum design variable condition.