Numerical Study on Cavitation in Oil Film and Its Impact on Transferred Torque

Background: Using viscosity of fluid between friction pairs to transmit power is called the Hydro-viscous Drive (HVD), which has obvious energy-saving effects on soft start and speed regulation in large belt conveyors, fans, and pumps. Therefore, it is of great practical significance to conduct the HVD technology research to improve its performance. In some conditions, cavitation in the oil film is generated, consequently affecting its transferred torque. Keywords: Cavitation, CFD, friction pair, hydro-viscous drive, multi-phase flow, oil film, transferred torque.