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

Figure 1

Decomposition of the transient phase from initial (i) to final (f) operating point through intermediate (𝑖^′) operating point.

(a) i-i′-f phases in the turbine map

(b) i-i′-f torque-to-rotational speed characteristics