Contributed by the Fluids Engineering Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS. Manuscript received by the Fluids Engineering Division April 21, 2000; revised manuscript received November 26, 2001. Associate Editor: B. Schiavello.
Many researchers, such as Daugherty 1, Stepanoff 2, Telow 3, Ippen 4, Itaya and Nishikawa 5, tested the performance of centrifugal oil pumps while the viscosity of the oil was varied.
These typical results provided great insights about the effects of the oil viscosity on the performance of centrifugal oil pumps. These test results were used to obtain important guidelines for selection and design of the pumps which are still in use today. However, these experimental results are based on oil pumps made in the 20s and 50s. In the mean time, both the hydraulic models of the pumps and their constructions have shown significant variations. If the past results are...
