Inverse aeroacoustic problem for a streamlined body. II - Accuracy of solutions
Previously established methods for performing the aeroacoustic inversion for a fiat-plate airfoil are tested to determine their sensitivity to errors in both the far-field input data and the mean-flow input parameters. The results of the sensitivity analysis for the input data show that the magnification of input error due to ill-posedness can be controlled by optimal choices of the regularization parameter and the input data locations. A similar sensitivity analysis of the effect of mean-flow parameters-Mach number and reduced frequency-shows strong dependence of the inverse process on these parameters. In this case, improvements in the reconstructions can be obtained by using input data from the midfield.