Analyses of the Design of Multirows Vaneless Staggered Counter-Rotating Turbine

Table 2

Turbine meanline design parameters.

	H1	L1	H2	L2
Stage pressure ratio ()	1.55	1.34	1.63	1.43
Stage flow coefficient ()	1.2	0.88	1.2	0.88
Stage work coefficient ()	1.8	1.2	1.8	1.2
Relative inlet flow angle ()	-39.7	37.3	-39.7	37.3
Relative exit flow angle ()	-62.9	-50	-62.9	-50
Rotor axial velocity ratio ()	1.7	0.9	1.7	0.9
Duct axial velocity ratio	0.8	0.82	0.8