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

Table 3

Clearance derivatives of different investigations.

Investigation	Clearance derivative
Wisler [1]	6.5
McDougall [21]	5.6
Berdanier and Key [20] TC1-2	3.0
Berdanier and Key [20] TC2-3	4.8
Wisler et al. [15] Compr. A TC1-2
Wisler et al. [15] Compr. A TC2-3	3.8
Wisler et al. [15] Compr. B TC1-2	3.0
Wisler et al. [15] Compr. B TC2-3	1.1
Present Paper TC1-2	4.5
Present Paper TC2-3	5.3
Present Paper TC3-4