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Reprint of: Extension of the near acoustic field of a jet to the far field
The problem of extending the near acoustic field of a high-speed jet to the far field is considered. This is akin to the problem of analytic continuation in complex variable. Analytic continuation is the extension of an analytic function in a limited domain to a larger domain. The general continuation problem involving acoustic sources enclosed by a surface is first analyzed. It is shown that a unique continuation to the far field is possible provided either the pressure or the pressuredoi:10.1016/j.piutam.2010.10.002 fatcat:nmypcyjge5cffnazcxxkcbpbuq