... of wave numbers. The forcing exhibits a significant dependency on the aeroacoustic cut-on/cut-off condition. This is in particular true at part speed where the normalized unsteady force rises sharply before dropping suddenly as the corrected speed or engine order increases. Unsteady pressure in the blade...

.... , 1997 , “ Acoustic Reflection and Transmission of Rotors and Stators Including Mode and Frequency Scattering ,” Third AIAA/CEAS Aeroacoustics Conference, Paper No. AIAA 1997–1610, pp. 199 – 210 . [2] Kaji , S. , and Okazaki , T. , 1970 , “ Propagation of Sound Waves Through a Blade Row...

... and Aeroacoustic Attributes of Highly-Heated Transitional Rectangular Supersonic Jets ,” Aeros. Sci. Tech. , 114 ( 1 ), p. 106747 . 10.1016/j.ast.2021.106747 [16] Chen , S. , Gojon , R. , and Mihaescu , M. , 2018 , “ High-Temperature Effects on Aerodynamic and Acoustic Characteristics...

... industry. Therefore, the design of high-performance heavy-duty industrial fans requires robust yet efficient solutions. The previous work indicates a high aerodynamic and aeroacoustic sensitivity concerning the specific position of the volute cutoff (tongue). This effect will be further investigated...

... in the J ournal of T urbomachinery . 21 01 2020 19 06 2020 19 06 2020 14 09 2020 centrifugal compressors compressor noise aeroacoustics high performance computing (HPC) computational fluid dynamics (CFD) Investigations into aeroacoustic phenomena...

... numerical simulations. The swirl-drag-noise relationship is quantified through scale-model aerodynamic and aeroacoustic wind tunnel tests. The maximum measured stable flow drag coefficient is 0.83 at exit swirl angles close to 50 deg. The acoustic signature, extrapolated to full-scale, is found to be well...

... and Exhibition, Vienna, Austria, June 13–17, 2004, Paper No. 2004-GT-53949. Manuscript received by IGTI, October 1, 2003; final revision, March 1, 2004. IGTI Review Chair: A. J. Strazisar. 13 June 2004 01 October 2003 01 March 2004 09 02 2005 aeroacoustics confined flow shock...

..., October 1, 2003; final revision, March 1, 2004. IGTI Review Chair: A. J. Strazisar. 13 June 2004 01 October 2003 01 March 2004 09 02 2005 transonic flow aerodynamics aeroacoustics rotors stators turbulence wakes acoustic field acoustic wave propagation...

... and downstream propagating acoustic modes. The model does not represent the effects of droop present on inlets of modern gas turbines, but the significant effects of area variation in the duct are included in the model. This allows the aeroacoustic flow field in the duct to be determined following the approach...