Accurate experimental two-port analysis of flow generated sound

In the study of in-duct aero-acoustic phenomena two-port analysis based upon in-duct measurements has become an important method for the plane wave region. However already at moderate Mach numbers ...

[1]  Åke Björck,et al.  Numerical Methods , 1995, Handbook of Marine Craft Hydrodynamics and Motion Control.

[2]  Tony L. Parrott,et al.  Evaluation of a multi-point method for determining acoustic impedance , 1989 .

[3]  Mats Åbom,et al.  Measurement of the scattering-matrix of acoustical two-ports , 1991 .

[4]  Mats Åbom,et al.  Error analysis of two‐microphone measurements in ducts with flow , 1988 .

[5]  Allan D. Pierce,et al.  Acoustics , 1989 .

[6]  Mats Åbom,et al.  Aeroacoustics of T-junctions : An experimental investigation , 2010 .

[7]  Wim Desmet,et al.  Experimental acoustic identification of flow noise sources in expansion chambers , 2008 .

[8]  P Martínez-Lera,et al.  Identification of the aeroacoustic response of a low Mach number flow through a T-joint. , 2009, The Journal of the Acoustical Society of America.

[9]  F. Saybert,et al.  Experimental determination of acoustic properties using a two-microphone random-excitation technique * , 2004 .

[10]  Mats Åbom,et al.  Experimental determination of the aero-acoustic properties of an in-duct flexible plate , 2008 .

[11]  Gcj Geert Hofmans,et al.  Vortex sound in confined flows , 1998 .

[12]  Hans Bodén.  On multi-load methods for determination of the source data of acoustic one-port sources , 1995 .

[13]  Mats Åbom,et al.  Investigation of damping and radiation using full plane wave decomposition in ducts , 2006 .

[14]  Mats Åbom,et al.  A measurement method for determining the source data of acoustic two-port sources , 1995 .

[15]  Ih,et al.  Refined multiload method for measuring acoustical source characteristics of an intake or exhaust system , 2000, The Journal of the Acoustical Society of America.

[16]  E. Dokumaci.  A note on transmission of sound in a wide pipe with mean flow and viscothermal attenuation , 1997 .

[17]  Julius S. Bendat,et al.  Engineering Applications of Correlation and Spectral Analysis , 1980 .

[18]  Samir Ziada,et al.  Excitation source of a side-branch shear layer , 2010 .

[19]  P.O.A.L. Davies,et al.  Practical flow duct acoustics , 1988 .

[20]  Mats Åbom,et al.  SIDLAB : New 1D sound propagation simulation software for complex duct networks , 2006 .

[21]  A. G. Doige,et al.  Theory of a two source-location method for direct experimental evaluation of the four-pole parameters of an aeroacoustic element , 1990 .

[22]  Mats Åbom,et al.  Over-determination in acoustic two-port data measurement , 2006 .

[23]  Mats Åbom,et al.  Influence of errors on the two‐microphone method for measuring acoustic properties in ducts , 1986 .

[24]  J. Ih,et al.  ON THE MULTIPLE MICROPHONE METHOD FOR MEASURING IN-DUCT ACOUSTIC PROPERTIES IN THE PRESENCE OF MEAN FLOW , 1998 .

[25]  Yong-Beum Kim,et al.  A measurement method of the flow rate in a pipe using a microphone array. , 2002, The Journal of the Acoustical Society of America.

[26]  Mats Åbom,et al.  A note on the experimental determination of acoustical two-port matrices , 1992 .

[27]  Mats Åbom,et al.  Aero-Acoustics of Flow Duct Singularities at Low Mach Numbers , 2006 .

[28]  Mats Åbom,et al.  On the Use of Linear Acoustic Multiports to Predict Whistling in Confined Flows , 2011 .

[29]  H. Schlichting.  Boundary Layer Theory , 1955 .

[30]  Ragnar Glav,et al.  A GENERAL FORMALISM FOR ANALYZING ACOUSTIC 2-PORT NETWORKS , 1997 .

[31]  A plane wave approximation to sound transmission in parallel sheared mean flow , 2005 .

[32]  Mats Åbom,et al.  The error suppression of an experimental over-determination of in-duct flow noise sources , 2010 .

[33]  Gunilla Efraimsson,et al.  Simulations of Duct Whistling with Nyquist Analysis and Linearized Navier-Stokes equations , 2011 .