Research Article
Design Optimization of a Transonic-Fan Rotor Using Numerical Computations of the Full Compressible Navier-Stokes Equations and Simplex Algorithm
Table 3
Low fidelity design parameters.
| Parameter | First stage | Second stage | Third stage | Rotor | Stator | Rotor | Stator | Rotor | Stator |
| Blades number | 25 | 27 | 34 | 35 | 34 | 35 | Mean radius (m) | 0.32 | 0.32 | 0.32 | 0.32 | 0.32 | 0.32 | Aspect ratio | 3.45 | 3.15 | 4 | 3.8 | 3.5 | 3.55 | Blade height | 0.28 | 0.21 | 0.2 | 0.19 | 0.17 | 0.16 | Hub/tip ratio | 0.39 | 0.49 | 0.52 | 0.53 | 0.57 | 0.6 | (r.p.m) | 9,800 | — | 9,800 | — | 9,800 | — | Tip speed (m/s) | 450 | — | 411.3 | — | 398 | — | at tip | 1.63 | — | 1.15 | — | 1.08 | — | Pressure ratio | 1.55 | 1.36 | 1.25 | Isentropic efficiency | 0.944 | 0.9337 | 0.9052 |
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