All

Mechanics in Engineering ›› 2010, Vol. 32 ›› Issue (5): 27-30.doi: 10.6052/1000-0879-lxysj2010-078

• Application study • Previous Articles     Next Articles

THE FLOW AND INTERNAL LEAKAGE OF ANNULAR SPIRAL FLOW IN HYDRAULIC ROTARY ACTUATOR

  

  • Received:2010-03-08 Online:2010-10-08 Published:2010-09-08

Abstract: Considering that the viscosity of the hydraulic oil will change accordingly when the temperature and pressure vary, the flow rate equation and leakage rate equation of the annular spiral flow in Hydraulic Rotary Actuator are derived based on continuity equation, N-S equation and energy equation. Using the CFD simulation software ``Fluent'', the flow field and the leakage law of the internal annular spiral flow are simulated. Comparing the simulation results with the theoretical calculation of the flowing annular spiral flow, the theoretical analysis is verified, which may provide a theoretical basis for studies of internal leakage and volume depletion in Hydraulic Rotary Actuator.

Key words: spiral flow;internal leakage;leakage rate;CFD;Hydraulic Rotary Actuator