Affordable Quasi Three-Dimensional Inverse Design Method For Pump Impellers

Abstract

Traditionally, the hydraulic design of impellers has been more of an empirical art than a well-defined engineering science. Because of the empiricism, new designs have been disappointing at times. Discussed here is a “new” method called inverse design, which is destined to turn this empiricism into a well-defined engineering discipline. Through this method, the design intent of the impeller can be clearly defined and specified. Therefore, this method is also great value to pump users. The basic idea of inverse design is almost 50 years old and comes now to maturity, because fast running internal impeller flow codes are presently available to execute the necessary calculations.