Open Access

Table 1

Table containing values used in the present simulations. Starred values (*) correspond to the LP3 testbench.

Variable Notation Value
Duct radius r t 0.085 m*
Distance from duct lip R 1 or 2 m or 17.5 or 35 wavelengths
Evaluation frequency f 6000 Hz
Azimuthal order m 0 – mp
Radial order n 0 − np
Mach number M 0 0, 0.12*, 0.30, 0.44
Velocity U 0 0, 40*, 100, 150 m/s
Helmholtz number H e 9.42

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