TY - GEN
T1 - Hybrid CFD/BEM approach to predict flow induced noise
AU - Croaker, P.
AU - Kinns, R.
AU - Kessissoglou, N.
AU - Norrison, D.
AU - Widjaja, R.
AU - Marburg, S.
PY - 2010
Y1 - 2010
N2 - A computational approach is proposed to extract the acoustic sources generated by low Mach number flow past a circular cylinder and to predict the associated far-field acoustic pressure. The transient hydrodynamic flow field is calculated using an incompressible computational fluid dynamics (CFD) solver. The acoustic sources are extracted from the hydrodynamic flow field based on the linearised perturbed compressible equations (LPCE). These acoustic sources are combined with a boundary element method (BEM) model of a rigid circular cylinder and the far field sound pressure level is predicted. The results from this hybrid CFD/BEM approach are presented for flow past a circular cylinder with Reynolds number, Re D=100 and Mach number, M=0.15. The directivity of the radiated sound pressure field at the vortex shedding frequency agrees well with results of alternate methods available in the literature.
AB - A computational approach is proposed to extract the acoustic sources generated by low Mach number flow past a circular cylinder and to predict the associated far-field acoustic pressure. The transient hydrodynamic flow field is calculated using an incompressible computational fluid dynamics (CFD) solver. The acoustic sources are extracted from the hydrodynamic flow field based on the linearised perturbed compressible equations (LPCE). These acoustic sources are combined with a boundary element method (BEM) model of a rigid circular cylinder and the far field sound pressure level is predicted. The results from this hybrid CFD/BEM approach are presented for flow past a circular cylinder with Reynolds number, Re D=100 and Mach number, M=0.15. The directivity of the radiated sound pressure field at the vortex shedding frequency agrees well with results of alternate methods available in the literature.
UR - https://www.scopus.com/pages/publications/84869125264
M3 - Conference contribution
AN - SCOPUS:84869125264
SN - 9781617827457
T3 - 20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society
SP - 156
EP - 161
BT - 20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society
T2 - 20th International Congress on Acoustics 2010, ICA 2010 - Incorporating the 2010 Annual Conference of the Australian Acoustical Society
Y2 - 23 August 2010 through 27 August 2010
ER -