TY - GEN
T1 - Improved hybrid prediction of fan noise
AU - Tanigawa, Keisuke
AU - Yamasaki, Nobuhiko
AU - Ooishi, Tsutomu
PY - 2009
Y1 - 2009
N2 - To predict fan noise level, the hybrid scheme, i.e., the combinational approach of a numerical simulation based on the three-dimensional unsteady Reynolds-averaged Navier-Stokes (URANS) equations and an analytical calculation based on the three-dimensional linear singularity theory, is to be improved. It takes into account the acoustic effects on the unsteady loading on the rotor blades as well as the stator vanes. The calculated noise level is compared more favorably with the experimental data, and the superiority of the improved hybrid scheme is confirmed.
AB - To predict fan noise level, the hybrid scheme, i.e., the combinational approach of a numerical simulation based on the three-dimensional unsteady Reynolds-averaged Navier-Stokes (URANS) equations and an analytical calculation based on the three-dimensional linear singularity theory, is to be improved. It takes into account the acoustic effects on the unsteady loading on the rotor blades as well as the stator vanes. The calculated noise level is compared more favorably with the experimental data, and the superiority of the improved hybrid scheme is confirmed.
UR - http://www.scopus.com/inward/record.url?scp=78149462693&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78149462693&partnerID=8YFLogxK
U2 - 10.2514/6.2009-3341
DO - 10.2514/6.2009-3341
M3 - Conference contribution
AN - SCOPUS:78149462693
SN - 9781563479748
T3 - 15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference)
BT - 15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference)
PB - American Institute of Aeronautics and Astronautics Inc.
ER -