Abstract
David Blackstock has made substantial contributions to the understanding of the propagation of broadband, finite-amplitude noise. His work with Pestorius, Theobald, Webster, and Menounou, among others, has given us an understanding of much of the underlying physics. Even so, there are still gaps in our knowledge of the noise propagation from supersonic jet flows. A recent study was undertaken to compare several methods for the far field progression of a finite-amplitude broadband spectrum. This paper will provide initial results for that comparison. For each method tested, a Gaussian spectrum and experimental jet noise data were utilized as inputs. [Work supported by Strategic Environmental Research and Development Program.]
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