Investigation of Performance and Rotor Tip Flow Field in a Low Speed Research Compressor with Circumferential Groove Casing Treatment at Varying Tip Clearance

Figure 7

Standard deviation of casing static pressure over rotor for SolidWall and Groove at = 3.7% and = 5.0% at three different operating points ((a, d, g, i): design point, (b, e, h, j): throttled operating point, and (c, f, k): near stall of current configuration).