TY - CONF
T1 - Calculation’s of interaction of acoustic waves with a two-dimensional free shear layer
AU - Koshigoe, S.
AU - Yang, V.
AU - Culick, F. E.C.
N1 - Publisher Copyright:
© American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1985
Y1 - 1985
N2 - The acoustic/vortical interaction in a two-dimensional free shear layer has been studied. The flowfield is represented by division into two parts: the vortical and the compressible flows. Each field is treated separately and linked with the other through the Bernoulli enthalpy. Acoustic waves are identified as unsteady compressible motions free of vorticity. Calculations have been carried out for the flowfields with and without externally imposed disturbances. Preliminary results reported here indicate that the motion of large coherent flow structures contributes significantly to sound generation. In particular, the formation of large structure and subsequent pairing appear globally as a quadrupole source.
AB - The acoustic/vortical interaction in a two-dimensional free shear layer has been studied. The flowfield is represented by division into two parts: the vortical and the compressible flows. Each field is treated separately and linked with the other through the Bernoulli enthalpy. Acoustic waves are identified as unsteady compressible motions free of vorticity. Calculations have been carried out for the flowfields with and without externally imposed disturbances. Preliminary results reported here indicate that the motion of large coherent flow structures contributes significantly to sound generation. In particular, the formation of large structure and subsequent pairing appear globally as a quadrupole source.
UR - http://www.scopus.com/inward/record.url?scp=84999025279&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84999025279&partnerID=8YFLogxK
M3 - Paper
AN - SCOPUS:84999025279
T2 - AlAA 23rd Aerospace Sciences Meeting, 1985
Y2 - 14 January 1985 through 17 January 1985
ER -