Research on the Relationship Between Pressure Pulsation and Leakage Vortex Intensity in the Blade Tip Clearance Under Various Operational Conditions of Axial Flow Pumps
This analysis reveals how tip leakage vortices affect pressure pulsation under varying operational conditions, suggesting implications for pump efficiency.
Key Points
Increased core strength of tip leakage vortices leads to higher pressure pulsation levels during operation.
The study observes that the pulsation amplitude correlates to the blade passing frequency under optimal conditions.
Using the vorticity transport equation, a relationship between tip leakage vortices and pressure pulsation is established.
Critical stall and deep stall conditions show that viscous dissipation impacts the frequency of pressure pulsation significantly.