Design Specifications

• Volume flow rate = 0.0244 m3/s
• Shaft speed = 12000 RPM
• Total Pressure Rise = 280 Pa
• Number of Blades = 10
• Outer diameter = 60.2 mm

3D Blade Parameterisation

• Leading edge loading at hub
• Leading edge loading at Shroud
• Slope of the hub loading distribution
• Slope of the shroud loading distribution
• Leading edge position at Hub (M4_LE_Hub)
• Leading edge position at Shroud(M4_LE_Shroud)
  
  
  

 

 

Multi-point, Multi-objective Optimization

 

Operating Point	OP1	OP2	OP3
Mass flow % of Design Point	100	84.0	110.6

 

Constraints	Objectives
Maximum pressure rise at OP3 < 220 Pa	Minimise tone noise  Maximise OP1 total-total efficiency Maximise OP2 total-total efficiency

 

 

Fast, Affordable High-Fidelity Simulation, RRS with CAE

 

• Initial Design Matrix of 40
• RRS adds 17 points to the design space
• 57 candidates in total, at 3 operating points
• 57 x 3 = 170 CFD calculations
• Total of 19 hours on 32 cores on Xeon workstation
  
  
  

 

Multi-point, Multi-objective Optimization Results