Effect of Partial Span Aspiration on the Performance of a Transonic Axial Compressor Rotor: A Numerical Study

Table 2

Performance of compressor rotor for different aspirated slot configurations (100% design rotor speed).

Configuration details
Sl #	Configuration #	Slot definition		Stall margin	Peak rotor
		Location chordwise	Size (mm)	Change (+/−)	Pressure ratio	Adiabatic efficiency
		PS–SS	Length × PS width × SS width
1	Baseline R37-0	Nil	Nil	0.00%	2.11	88.00%
2	AR37-1	40%–60%	28 × 4 × 2	0.05%	2.05	86.00%
3	AR37-2	40%–60%	28 × 7 × 4	3.20%	2.08	85.11%
4	AR37-3	50%–70%	28 × 4 × 2	2.10%	2.06	86.36%
5	AR37-4	50%–70%	28 × 7 × 4	1.70%	2.06	86.03%
6	AR37-5	40%–70%	28 × 4 × 2	0.80%	2.05	86.03%
7	AR37-6	40%–70%	28 × 7 × 4	0.32%	2.07	86.19%

AR37: Aspirated Rotor 37.