An Euler code prediction of near field to midfield sonic boom pressure signaturesA new approach is presented for computing sonic boom pressure signatures in the near field to midfield that utilizes a fully three-dimensional Euler finite volume code capable of analyzing complex geometries. Both linear and nonlinear sonic boom methodologies exist but for the most part rely primarily on equivalent area distributions for the prediction of far field pressure signatures. This is due to the absence of a flexible nonlinear methodology that can predict near field pressure signatures generated by three-dimensional aircraft geometries. It is the intention of the present study to present a nonlinear Euler method than can fill this gap and supply the needed near field signature data for many of the existing sonic boom codes.
Document ID
19910027890
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Siclari, M. J. (Grumman Corporate Research Center Bethpage, NY, United States)
Darden, C. M. (NASA Langley Research Center Hampton, VA, United States)