Observations of the Growth and Decay of Stall Cells during Stall and Surge in an Axial Compressor

Figure 11

Time series of (a) circumferential array of static pressures upstream of the rotor leading edge, (b) circumferential array of hot wires upstream of the rotor leading edge, (c) annulus average mass flow, and (d) plenum-to-plenum pressure rise during stall (blue) and surge (red).

(a)

(b)

(c)

(d)