Effects of a Nonuniform Tip Clearance Profile on the Performance and Flow Field in a Centrifugal Compressor

Table 2

Numerical test cases.

	Leading edge	Trailing edge
Case  1	0.7 mm	0.7 mm
Case  2	0.7 mm	0.48 mm
Case  3	0.7 mm	0.24 mm
Case  4	0.48 mm	0.7 mm
Case  5	0.24 mm	0.7 mm
Case  6	0.24 mm	0.24 mm