Detailed Unsteady Simulation of a Counterrotating Aspirated Compressor with a Focus on the Aspiration Slot and Plenum

Figure 19

Time mean and unsteady contours of the slot inlet for the adiabatic case. The width to height aspect ratio was adjusted to better view the variation of properties along the width of the slot. 𝑇_𝑝=1.273×10⁻⁴ seconds, which is the rotor one blade passing period. Left is upstream, right is downstream.

(a) 𝑚̇_per𝐴, (kg/s∗m²)

(b) Entropy, (J/kg∗K)

(c) Relative total pressure, (Pa)

(d) Relative total temperature, (K)