Year: 2007
International Journal of Numerical Analysis and Modeling, Vol. 4 (2007), Iss. 1 : pp. 116–126
Abstract
We study the optimal design problem of acoustic liner to minimize fan noise radiation from commercial aircraft engine nacelles. Specifically we treat the liner impedance factor as a parameter and seek to estimate its optimal value that minimizes far-field radiated noise. The existence of such an optimal parameter is proved under the assumption that the Helmholtz equation governs the noise field. We also present numerical results to demonstrate that the choice of the optimal liner impedance factor does result in significant reduction of noise level in the far-field.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/2007-IJNAM-854
International Journal of Numerical Analysis and Modeling, Vol. 4 (2007), Iss. 1 : pp. 116–126
Published online: 2007-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 11
Keywords: liner impedance factor the Helmholtz equation optimization problem.