Experimental test description
Centrifugal compressor impeller (backswept rotor A: experiments by D.Eckardt et al, 1976-1980)
* 20 blades with sweep angle 60 deg.
* Tip-clearance between shroud and blades: 0.5 - 0.8 mm
* Tip speed: * 300 m/s
* Pressure ratio: 1.91
* Efficiency: 88.6%
Shaft speed: 14000 r.p.m.
Optimum air mass flow rate: 4.54 kg/s
Inlet total pressure: 101.33 kPa
Inlet total temperature: 15 deg.C
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