Dynamic Response in Transient Operation of a Variable Geometry Turbine Stage: Influence of the Aerodynamic Performance

Figure 8

Comparison of the initial estimation of the torque at the point 𝑖^′ given by (9) with the back-deduction of the torque through the response time (𝜏_𝑖′′).

(a) Comparison for the different stator geometries

(b) Comparison of the CFD prediction of 𝜏_𝑖′ with 𝜏_𝑖′′ for two stator geometries