Figure 1. Turbine expansion ratios as a function of the power ratio. Figure 2. Rotor minimum inlet Mach number. Figure 3. Variation of inlet flow angle with inlet Mach number. Figure 5. Non-dimensional rotor geometry as a function of relative velocity ratio. _ AH Zahed and NN Bayomi / |SESCO Journal of Science and Technology - Volume 11, Number 19 (May 2015) (9-22) Conclusions