Acoustic performance of a resonating perforated liner with incident axial and circumferential acoustic modes
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2019.114897
Abstract: Abstract Perforated liners are a common form of passive damping device used in engineering applications to damp acoustic pressure fluctuations. The liner has many orifices arranged over the surface with a rear cavity, where the… read more here.
Keywords: acoustic modes; cavity; acoustic performance; mode ... See more keywords
Hybridization of Guided Surface Acoustic Modes in Unconsolidated Granular Media by a Resonant Metasurface
Sign Up to like & getrecommendations! Published in 2018 at "Physical review applied"
DOI: 10.1103/physrevapplied.9.054026
Abstract: We investigate the interaction of guided surface acoustic modes (GSAMs) in unconsolidated granular media with a metasurface, consisting of an array of vertical oscillators. We experimentally observe the hybridization of the lowest-order GSAM at the… read more here.
Keywords: guided surface; acoustic modes; surface acoustic; unconsolidated granular ... See more keywords
Intrinsic thermoacoustic modes and their interplay with acoustic modes in a Rijke burner
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Spray and Combustion Dynamics"
DOI: 10.1177/1756827718782884
Abstract: The interplays between acoustic and intrinsic modes in a model of a Rijke burner are revealed and their influence on the prediction of thermoacoustic instabilities is demonstrated. To this end, the system is examined for… read more here.
Keywords: thermoacoustic modes; rijke burner; acoustic modes; reflection coefficients ... See more keywords
Investigations on Complex Acoustic Modes of Rocket Engines Combustion Chambers for Damping Allocation
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Aerospace Technology and Management"
DOI: 10.1590/jatm.v13.1198
Abstract: Combustion instability can severely impair the operation of many kinds of combustion engines. Acoustic resonators are widely used to suppress the pressure oscillations caused by the coupling between the combustion process and the combustion chamber… read more here.
Keywords: investigations complex; combustion chambers; modes rocket; acoustic modes ... See more keywords
Acoustic Modes of Multi-Ion Dusty Plasmas
Sign Up to like & getrecommendations! Published in 2020 at "Journal of the Korean Physical Society"
DOI: 10.3938/jkps.76.824
Abstract: In this manuscript, we aim to derive a general dispersion relation applicable to a multi-component dusty plasma including massive negatively charged dust particles, both negative and positive ions, and electrons. Using the fluid treatment of… read more here.
Keywords: modes multi; dusty; acoustic modes; ion ... See more keywords